diff --git a/.github/workflows/Linux_2.12_App_Chain_Node_Core_Tests.yml b/.github/workflows/Linux_2.12_App_Chain_Node_Core_Tests.yml
index df21751b96..ccf83cf8ba 100644
--- a/.github/workflows/Linux_2.12_App_Chain_Node_Core_Tests.yml
+++ b/.github/workflows/Linux_2.12_App_Chain_Node_Core_Tests.yml
@@ -23,4 +23,4 @@ jobs:
             ~/.bitcoin-s/binaries
           key: ${{ runner.os }}-cache
       - name: run tests
-        run: sbt ++2.12.12 downloadBitcoind coverage chainTest/test chain/coverageReport chain/coverageAggregate chain/coveralls nodeTest/test node/coverageReport node/coverageAggregate node/coveralls cryptoTest/test cryptoJVM/coverageReport cryptoJVM/coverageAggregate cryptoJVM/coveralls coreTest/test core/coverageReport core/coverageAggregate core/coveralls secp256k1jni/test zmq/test zmq/coverageReport zmq/coverageAggregate zmq/coveralls appCommonsTest/test appServerTest/test oracleServerTest/test
+        run: sbt ++2.12.12 downloadBitcoind coverage chainTest/test chain/coverageReport chain/coverageAggregate chain/coveralls nodeTest/test node/coverageReport node/coverageAggregate node/coveralls cryptoJVM/test cryptoTest/test cryptoJVM/coverageReport cryptoJVM/coverageAggregate cryptoJVM/coveralls coreTest/test core/coverageReport core/coverageAggregate core/coveralls secp256k1jni/test zmq/test zmq/coverageReport zmq/coverageAggregate zmq/coveralls appCommonsTest/test appServerTest/test oracleServerTest/test
diff --git a/.github/workflows/Linux_2.13_App_Chain_Node_Core_Tests.yml b/.github/workflows/Linux_2.13_App_Chain_Node_Core_Tests.yml
index 2464cbf734..27774caef4 100644
--- a/.github/workflows/Linux_2.13_App_Chain_Node_Core_Tests.yml
+++ b/.github/workflows/Linux_2.13_App_Chain_Node_Core_Tests.yml
@@ -23,4 +23,4 @@ jobs:
             ~/.bitcoin-s/binaries
           key: ${{ runner.os }}-cache
       - name: run tests
-        run: sbt ++2.13.5 downloadBitcoind coverage chainTest/test chain/coverageReport chain/coverageAggregate chain/coveralls nodeTest/test node/coverageReport node/coverageAggregate node/coveralls cryptoTest/test cryptoJVM/coverageReport cryptoJVM/coverageAggregate cryptoJVM/coveralls coreTest/test core/coverageReport core/coverageAggregate core/coveralls secp256k1jni/test zmq/test zmq/coverageReport zmq/coverageAggregate zmq/coveralls appCommonsTest/test appServerTest/test oracleServerTest/test
+        run: sbt ++2.13.5 downloadBitcoind coverage chainTest/test chain/coverageReport chain/coverageAggregate chain/coveralls nodeTest/test node/coverageReport node/coverageAggregate node/coveralls cryptoTest/test cryptoJVM/test cryptoJVM/coverageReport cryptoJVM/coverageAggregate cryptoJVM/coveralls coreTest/test core/coverageReport core/coverageAggregate core/coveralls secp256k1jni/test zmq/test zmq/coverageReport zmq/coverageAggregate zmq/coveralls appCommonsTest/test appServerTest/test oracleServerTest/test
diff --git a/bitcoin-s-docs/docs.sbt b/bitcoin-s-docs/docs.sbt
index 247da14efb..3b84518f54 100644
--- a/bitcoin-s-docs/docs.sbt
+++ b/bitcoin-s-docs/docs.sbt
@@ -42,7 +42,5 @@ buildInfoPackage := "org.bitcoins.docs"
 Test / bloopGenerate := None
 Compile / bloopGenerate := None
 
-libraryDependencies ++= Deps.docs
-
 //https://stackoverflow.com/questions/26940253/in-sbt-how-do-you-override-scalacoptions-for-console-in-all-configurations
 scalacOptions in Compile ~= (_.filterNot(s => s == "-Xfatal-warnings"))
diff --git a/bitcoind-rpc-test/bitcoind-rpc-test.sbt b/bitcoind-rpc-test/bitcoind-rpc-test.sbt
index d436bd90ea..e7b2d3013e 100644
--- a/bitcoind-rpc-test/bitcoind-rpc-test.sbt
+++ b/bitcoind-rpc-test/bitcoind-rpc-test.sbt
@@ -1,7 +1,3 @@
-name := "bitcoin-s-bitcoind-rpc-test"
-
-libraryDependencies ++= Deps.bitcoindRpcTest(scalaVersion.value)
-
 Test / test := (Test / test dependsOn {
   Projects.bitcoindRpc / TaskKeys.downloadBitcoind
 }).value
diff --git a/build.sbt b/build.sbt
index a632bb3b6d..cf66048d34 100644
--- a/build.sbt
+++ b/build.sbt
@@ -46,16 +46,11 @@ lazy val crypto = crossProject(JVMPlatform, JSPlatform)
     name := "bitcoin-s-crypto"
   )
   .jvmSettings(
-    libraryDependencies ++= Seq(
-      "org.scala-js" %% "scalajs-stubs" % "1.0.0" % "provided",
-      "org.bouncycastle" % "bcprov-jdk15on" % V.bouncyCastle withSources () withJavadoc ()
-    )
+    libraryDependencies ++= Deps.cryptoJVM
   )
   .jsSettings(commonJsSettings)
   .settings(
-    libraryDependencies ++= Seq(
-      "org.scodec" %%% "scodec-bits" % V.scodecV withSources () withJavadoc ()
-    )
+    libraryDependencies ++= Deps.crypto.value
   )
   .in(file("crypto"))
 
@@ -63,7 +58,10 @@ lazy val cryptoJS = crypto.js
 
 lazy val cryptoJVM = crypto.jvm.dependsOn(secp256k1jni)
 
-lazy val core = project in file("core") dependsOn cryptoJVM
+lazy val core = project
+  .in(file("core"))
+  .settings(libraryDependencies ++= Deps.core.value)
+  .dependsOn(cryptoJVM)
 
 lazy val bitcoindRpc = project
   .in(file("bitcoind-rpc"))
@@ -288,7 +286,8 @@ lazy val cryptoTest = project
   .in(file("crypto-test"))
   .settings(CommonSettings.testSettings: _*)
   .settings(
-    name := "bitcoin-s-crypto-test"
+    name := "bitcoin-s-crypto-test",
+    libraryDependencies ++= Deps.cryptoTest.value
   )
   .dependsOn(
     cryptoJVM % testAndCompile,
@@ -299,7 +298,8 @@ lazy val coreTest = project
   .in(file("core-test"))
   .settings(CommonSettings.testSettings: _*)
   .settings(
-    name := "bitcoin-s-core-test"
+    name := "bitcoin-s-core-test",
+    libraryDependencies ++= Deps.coreTest.value
   )
   .dependsOn(
     core % testAndCompile,
@@ -434,7 +434,7 @@ lazy val dbCommons = project
   .settings(CommonSettings.prodSettings: _*)
   .settings(
     name := "bitcoin-s-db-commons",
-    libraryDependencies ++= Deps.dbCommons
+    libraryDependencies ++= Deps.dbCommons.value
   )
   .dependsOn(core, appCommons)
 
@@ -451,7 +451,7 @@ lazy val feeProvider = project
   .settings(CommonSettings.prodSettings: _*)
   .settings(
     name := "bitcoin-s-fee-provider",
-    libraryDependencies ++= Deps.feeProvider
+    libraryDependencies ++= Deps.feeProvider.value
   )
   .dependsOn(core, appCommons)
 
@@ -460,14 +460,15 @@ lazy val feeProviderTest = project
   .settings(CommonSettings.testSettings: _*)
   .settings(
     name := "bitcoin-s-fee-provider-test",
-    libraryDependencies ++= Deps.feeProviderTest
+    libraryDependencies ++= Deps.feeProviderTest.value
   )
   .dependsOn(core, core % testAndCompile, testkit)
 
 lazy val zmq = project
   .in(file("zmq"))
   .settings(CommonSettings.prodSettings: _*)
-  .settings(name := "bitcoin-s-zmq", libraryDependencies ++= Deps.bitcoindZmq)
+  .settings(name := "bitcoin-s-zmq",
+            libraryDependencies ++= Deps.bitcoindZmq.value)
   .dependsOn(
     core % testAndCompile
   )
@@ -475,6 +476,8 @@ lazy val zmq = project
 lazy val bitcoindRpcTest = project
   .in(file("bitcoind-rpc-test"))
   .settings(CommonSettings.testSettings: _*)
+  .settings(name := "bitcoin-s-bitcoind-rpc-test",
+            libraryDependencies ++= Deps.bitcoindRpcTest.value)
   .dependsOn(core % testAndCompile, testkit)
 
 lazy val bench = project
@@ -491,7 +494,7 @@ lazy val eclairRpcTest = project
   .in(file("eclair-rpc-test"))
   .settings(CommonSettings.testSettings: _*)
   .settings(
-    libraryDependencies ++= Deps.eclairRpcTest,
+    libraryDependencies ++= Deps.eclairRpcTest.value,
     name := "bitcoin-s-eclair-rpc-test"
   )
   .dependsOn(core % testAndCompile, testkit)
@@ -530,7 +533,7 @@ lazy val nodeTest =
       // Scalatest issue:
       // https://github.com/scalatest/scalatest/issues/556
       Test / fork := false,
-      libraryDependencies ++= Deps.nodeTest
+      libraryDependencies ++= Deps.nodeTest.value
     )
     .dependsOn(
       core % testAndCompile,
@@ -543,7 +546,8 @@ lazy val testkit = project
   .in(file("testkit"))
   .settings(CommonSettings.prodSettings: _*)
   .settings(
-    name := "bitcoin-s-testkit"
+    name := "bitcoin-s-testkit",
+    libraryDependencies ++= Deps.testkit.value
   )
   .dependsOn(
     asyncUtils,
@@ -561,6 +565,7 @@ lazy val testkit = project
 lazy val docs = project
   .in(file("bitcoin-s-docs")) // important: it must not be docs/
   .settings(CommonSettings.testSettings: _*)
+  .settings(libraryDependencies ++= Deps.docs.value)
   .dependsOn(
     bitcoindRpc,
     chain,
diff --git a/core-test/build.sbt b/core-test/build.sbt
index b22cfe13e8..aaf2d62bb1 100644
--- a/core-test/build.sbt
+++ b/core-test/build.sbt
@@ -1,7 +1,3 @@
-name := "bitcoin-s-core-test"
-
-libraryDependencies ++= Deps.coreTest
-
 publishArtifact := false
 
 testOptions in Test += Tests.Argument(TestFrameworks.ScalaCheck,
diff --git a/core/core.sbt b/core/core.sbt
index 99dabcf270..815886b801 100644
--- a/core/core.sbt
+++ b/core/core.sbt
@@ -1,5 +1,3 @@
 name := "bitcoin-s-core"
 
-libraryDependencies ++= Deps.core
-
 CommonSettings.prodSettings
diff --git a/crypto-test/crypto-test.sbt b/crypto-test/crypto-test.sbt
index b0b460fed2..aaf2d62bb1 100644
--- a/crypto-test/crypto-test.sbt
+++ b/crypto-test/crypto-test.sbt
@@ -1,7 +1,3 @@
-name := "bitcoin-s-crypto-test"
-
-libraryDependencies ++= Deps.cryptoTest
-
 publishArtifact := false
 
 testOptions in Test += Tests.Argument(TestFrameworks.ScalaCheck,
diff --git a/crypto-test/src/test/scala/org/bitcoins/crypto/FieldElementTest.scala b/crypto-test/src/test/scala/org/bitcoins/crypto/FieldElementTest.scala
index 536d7a4148..3fcc09898c 100644
--- a/crypto-test/src/test/scala/org/bitcoins/crypto/FieldElementTest.scala
+++ b/crypto-test/src/test/scala/org/bitcoins/crypto/FieldElementTest.scala
@@ -10,7 +10,7 @@ class FieldElementTest extends BitcoinSUnitTest {
 
   behavior of "FieldElement"
 
-  private val N = CryptoParams.curve.getN
+  private val N = CryptoParams.getN
 
   it must "have serialization symmetry" in {
     forAll(CryptoGenerators.fieldElement) { fe =>
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleCryptoParams.scala b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleCryptoParams.scala
new file mode 100644
index 0000000000..1ad703a516
--- /dev/null
+++ b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleCryptoParams.scala
@@ -0,0 +1,16 @@
+package org.bitcoins.crypto
+
+import org.bouncycastle.asn1.sec.SECNamedCurves
+import org.bouncycastle.asn1.x9.X9ECParameters
+import org.bouncycastle.crypto.params.ECDomainParameters
+
+object BouncyCastleCryptoParams {
+  val params: X9ECParameters = SECNamedCurves.getByName("secp256k1")
+
+  /** The curve that bitcoin uses. */
+  val curve =
+    new ECDomainParameters(params.getCurve,
+                           params.getG,
+                           params.getN,
+                           params.getH)
+}
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleUtil.scala b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleUtil.scala
index 582b71c0ba..b3b550e2ea 100644
--- a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleUtil.scala
+++ b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncyCastleUtil.scala
@@ -14,8 +14,8 @@ import scala.util.Try
 
 object BouncyCastleUtil {
 
-  private val curve: ECCurve = CryptoParams.curve.getCurve
-  private val G: ECPoint = CryptoParams.curve.getG
+  private val curve: ECCurve = BouncyCastleCryptoParams.curve.getCurve
+  private val G: ECPoint = BouncyCastleCryptoParams.curve.getG
 
   private def getBigInteger(bytes: ByteVector): BigInteger = {
     new BigInteger(1, bytes.toArray)
@@ -81,7 +81,7 @@ object BouncyCastleUtil {
       new HMacDSAKCalculator(new SHA256Digest()))
     val privKey: ECPrivateKeyParameters =
       new ECPrivateKeyParameters(getBigInteger(privateKey.bytes),
-                                 CryptoParams.curve)
+                                 BouncyCastleCryptoParams.curve)
     signer.init(true, privKey)
     val components: Array[BigInteger] =
       signer.generateSignature(dataToSign.toArray)
@@ -114,7 +114,7 @@ object BouncyCastleUtil {
       new HMacDSAKCalculatorWithEntropy(new SHA256Digest(), entropy))
     val privKey: ECPrivateKeyParameters =
       new ECPrivateKeyParameters(getBigInteger(privateKey.bytes),
-                                 CryptoParams.curve)
+                                 BouncyCastleCryptoParams.curve)
     signer.init(true, privKey)
     val components: Array[BigInteger] =
       signer.generateSignature(dataToSign.toArray)
@@ -138,7 +138,7 @@ object BouncyCastleUtil {
     val resultTry = Try {
       val publicKeyParams =
         new ECPublicKeyParameters(decodePoint(publicKey.bytes),
-                                  CryptoParams.curve)
+                                  BouncyCastleCryptoParams.curve)
 
       val signer = new ECDSASigner
       signer.init(false, publicKeyParams)
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncycastleCryptoRuntime.scala b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncycastleCryptoRuntime.scala
index f0272ad4e0..036f640bc7 100644
--- a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncycastleCryptoRuntime.scala
+++ b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/BouncycastleCryptoRuntime.scala
@@ -27,7 +27,8 @@ trait BouncycastleCryptoRuntime extends CryptoRuntime {
   override def freshPrivateKey: ECPrivateKey = {
     val generator: ECKeyPairGenerator = new ECKeyPairGenerator
     val keyGenParams: ECKeyGenerationParameters =
-      new ECKeyGenerationParameters(CryptoParams.curve, secureRandom)
+      new ECKeyGenerationParameters(BouncyCastleCryptoParams.curve,
+                                    secureRandom)
     generator.init(keyGenParams)
     val keypair: AsymmetricCipherKeyPair = generator.generateKeyPair
     val privParams: ECPrivateKeyParameters =
@@ -63,7 +64,7 @@ trait BouncycastleCryptoRuntime extends CryptoRuntime {
       signature: ECDigitalSignature,
       message: ByteVector): (ECPublicKey, ECPublicKey) = {
 
-    val curve = CryptoParams.curve
+    val curve = BouncyCastleCryptoParams.curve
     val (r, s) = (signature.r.bigInteger, signature.s.bigInteger)
 
     val m = new BigInteger(1, message.toArray)
@@ -140,7 +141,7 @@ trait BouncycastleCryptoRuntime extends CryptoRuntime {
     BouncyCastleUtil.signWithEntropy(bytes, privateKey, entropy)
 
   override def secKeyVerify(privateKeyBytes: ByteVector): Boolean =
-    CryptoParams.curve.getCurve
+    BouncyCastleCryptoParams.curve.getCurve
       .isValidFieldElement(new BigInteger(1, privateKeyBytes.toArray))
 
   override def verify(
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/CryptoParams.scala b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/CryptoParams.scala
deleted file mode 100644
index 0283d34380..0000000000
--- a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/CryptoParams.scala
+++ /dev/null
@@ -1,32 +0,0 @@
-package org.bitcoins.crypto
-
-import org.bouncycastle.asn1.sec.SECNamedCurves
-import org.bouncycastle.asn1.x9.X9ECParameters
-import org.bouncycastle.crypto.params.ECDomainParameters
-
-import java.math.BigInteger
-
-/** Created by chris on 3/29/16.
-  * This trait represents all of the default parameters for our elliptic curve
-  */
-sealed abstract class CryptoParams {
-
-  /** This is the parameters for the elliptic curve bitcoin uses. */
-  def params: X9ECParameters = SECNamedCurves.getByName("secp256k1")
-
-  /** The curve that bitcoin uses. */
-  def curve =
-    new ECDomainParameters(params.getCurve,
-                           params.getG,
-                           params.getN,
-                           params.getH)
-
-  /** This is used for canonicalising the S value of a digital signature.
-    * https://github.com/bitcoin/bips/blob/master/bip-0062.mediawiki#low-s-values-in-signatures
-    * @return
-    */
-  def halfCurveOrder: BigInteger = curve.getN.shiftRight(1)
-
-}
-
-object CryptoParams extends CryptoParams
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/HMacDSAKCalculatorWithEntropy.scala b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/HMacDSAKCalculatorWithEntropy.scala
index 4fb8111920..80ce2e263c 100644
--- a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/HMacDSAKCalculatorWithEntropy.scala
+++ b/crypto/.jvm/src/main/scala/org/bitcoins/crypto/HMacDSAKCalculatorWithEntropy.scala
@@ -29,7 +29,7 @@ class HMacDSAKCalculatorWithEntropy(digest: Digest, entropy: ByteVector)
   private val K = new Array[Byte](hMac.getMacSize)
   private val V = new Array[Byte](hMac.getMacSize)
 
-  private var n = CryptoParams.curve.getN
+  private var n = BouncyCastleCryptoParams.curve.getN
 
   override def isDeterministic = true
 
diff --git a/crypto/.jvm/src/test/scala/org/bitcoins/crypto/BouncyCastleCryptoParamsTest.scala b/crypto/.jvm/src/test/scala/org/bitcoins/crypto/BouncyCastleCryptoParamsTest.scala
new file mode 100644
index 0000000000..5281f26d1a
--- /dev/null
+++ b/crypto/.jvm/src/test/scala/org/bitcoins/crypto/BouncyCastleCryptoParamsTest.scala
@@ -0,0 +1,12 @@
+package org.bitcoins.crypto
+
+import org.scalatest.flatspec.AnyFlatSpec
+
+class BouncyCastleCryptoParamsTest extends AnyFlatSpec {
+
+  behavior of "BouncyCastleCryptoParams"
+
+  it must "have the same CryptoParams.getN & BouncyCastleCryptoParams.getN" in {
+    assert(CryptoParams.getN == BouncyCastleCryptoParams.curve.getN)
+  }
+}
diff --git a/crypto/src/main/scala/org/bitcoins/crypto/CryptoParams.scala b/crypto/src/main/scala/org/bitcoins/crypto/CryptoParams.scala
new file mode 100644
index 0000000000..2d1acc1c85
--- /dev/null
+++ b/crypto/src/main/scala/org/bitcoins/crypto/CryptoParams.scala
@@ -0,0 +1,27 @@
+package org.bitcoins.crypto
+
+import scodec.bits.ByteVector
+
+import java.math.BigInteger
+
+/** Created by chris on 3/29/16.
+  * This trait represents all of the default parameters for our elliptic curve
+  */
+sealed abstract class CryptoParams {
+
+  /** Hex constant for curve group constant
+    */
+  private val nConstant =
+    "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141"
+
+  val getN: BigInteger =
+    new BigInteger(1, ByteVector.fromValidHex(nConstant).toArray)
+
+  /** This is used for canonicalising the S value of a digital signature.
+    * https://github.com/bitcoin/bips/blob/master/bip-0062.mediawiki#low-s-values-in-signatures
+    * @return
+    */
+  val halfCurveOrder: BigInteger = getN.shiftRight(1)
+}
+
+object CryptoParams extends CryptoParams
diff --git a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala b/crypto/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala
similarity index 98%
rename from crypto/.jvm/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala
rename to crypto/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala
index 735c372668..263b2c5af5 100644
--- a/crypto/.jvm/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala
+++ b/crypto/src/main/scala/org/bitcoins/crypto/DERSignatureUtil.scala
@@ -192,9 +192,8 @@ sealed abstract class DERSignatureUtil {
     val sigLowS =
       if (isLowS(signature)) signature
       else
-        ECDigitalSignature(
-          signature.r,
-          CryptoParams.curve.getN.subtract(signature.s.bigInteger))
+        ECDigitalSignature(signature.r,
+                           CryptoParams.getN.subtract(signature.s.bigInteger))
     require(DERSignatureUtil.isLowS(sigLowS))
     sigLowS
   }
diff --git a/project/Deps.scala b/project/Deps.scala
index 69b9a58473..5e340790b7 100644
--- a/project/Deps.scala
+++ b/project/Deps.scala
@@ -1,4 +1,5 @@
 import sbt._
+import org.portablescala.sbtplatformdeps.PlatformDepsPlugin.autoImport._
 
 object Deps {
 
@@ -54,6 +55,7 @@ object Deps {
 
     val sourcecodeV = "0.2.3"
 
+    val scalaJsStubsV = "1.0.0"
     // CLI deps
     val scoptV = "4.0.0"
     val sttpV = "1.7.2"
@@ -66,7 +68,8 @@ object Deps {
       "org.bouncycastle" % "bcprov-jdk15on" % V.bouncyCastle withSources () withJavadoc ()
 
     val scodec =
-      "org.scodec" %% "scodec-bits" % V.scodecV withSources () withJavadoc ()
+      Def.setting(
+        "org.scodec" %%% "scodec-bits" % V.scodecV withSources () withJavadoc ())
 
     val slf4j =
       "org.slf4j" % "slf4j-api" % V.slf4j % "provided" withSources () withJavadoc ()
@@ -172,8 +175,12 @@ object Deps {
     val scalacheck =
       "org.scalacheck" %% "scalacheck" % V.scalacheck withSources () withJavadoc ()
 
+    val scalaJsStubs =
+      "org.scala-js" %% "scalajs-stubs" % V.scalaJsStubsV % "provided"
+
     val scalaTest =
-      "org.scalatest" %% "scalatest" % V.scalaTest withSources () withJavadoc ()
+      Def.setting(
+        "org.scalatest" %%% "scalatest" % V.scalaTest withSources () withJavadoc ())
 
     val scalaTestPlus =
       "org.scalatestplus" %% "scalacheck-1-14" % V.scalaTestPlus withSources () withJavadoc ()
@@ -195,7 +202,9 @@ object Deps {
     val logback = Compile.logback % "test"
     val grizzledSlf4j = Compile.grizzledSlf4j % "test"
     val scalacheck = Compile.scalacheck % "test"
-    val scalaTest = Compile.scalaTest % "test"
+
+    val scalaTest = Def.setting(
+      "org.scalatest" %%% "scalatest" % V.scalaTest % "test" withSources () withJavadoc ())
     val scalaMock = "org.scalamock" %% "scalamock" % V.scalamockV
 
     val spray =
@@ -236,43 +245,60 @@ object Deps {
       Compile.slf4j
     )
 
-  val core = List(
+  def core = Def.setting {
+    List(
+      Compile.bouncycastle,
+      Compile.scodec.value,
+      Compile.slf4j,
+      Compile.grizzledSlf4j
+    )
+  }
+
+  val cryptoJVM = List(
     Compile.bouncycastle,
-    Compile.scodec,
-    Compile.slf4j,
-    Compile.grizzledSlf4j
+    Compile.scalaJsStubs
   )
 
-  val crypto = List(
-    Compile.bouncycastle,
-    Compile.scodec
-  )
+  def crypto: Def.Initialize[Seq[ModuleID]] = {
+    Def.setting {
+      List(
+        Compile.scodec.value,
+        Test.scalaTest.value
+      )
+    }
+  }
 
   val secp256k1jni = List(
     Compile.nativeLoader,
     Test.junitInterface
   )
 
-  val coreTest = List(
-    Test.junitInterface,
-    Test.logback,
-    Test.scalaTest,
-    Test.spray,
-    Test.playJson,
-    Test.scalaCollectionCompat
-  )
+  def coreTest = Def.setting {
+    List(
+      Test.junitInterface,
+      Test.logback,
+      Test.scalaTest.value,
+      Test.spray,
+      Test.playJson,
+      Test.scalaCollectionCompat
+    )
+  }
 
-  val cryptoTest = List(
-    Test.scalaTest
-  )
+  def cryptoTest = Def.setting {
+    List(
+      Test.scalaTest.value
+    )
+  }
 
-  val bitcoindZmq = List(
-    Compile.zeromq,
-    Compile.slf4j,
-    Test.logback,
-    Test.scalacheck,
-    Test.scalaTest
-  )
+  def bitcoindZmq = Def.setting {
+    List(
+      Compile.zeromq,
+      Compile.slf4j,
+      Test.logback,
+      Test.scalacheck,
+      Test.scalaTest.value
+    )
+  }
 
   val bitcoindRpc = List(
     Compile.akkaHttp,
@@ -280,34 +306,37 @@ object Deps {
     Compile.typesafeConfig
   )
 
-  def bitcoindRpcTest(scalaVersion: String) =
+  def bitcoindRpcTest = Def.setting {
     List(
       Test.akkaHttpTestkit,
       Test.akkaStream,
       Test.logback,
-      Test.scalaTest,
+      Test.scalaTest.value,
       Test.scalacheck,
       Test.newAsync,
       Test.scalaCollectionCompat
     )
+  }
 
   val bench = List(
     "org.slf4j" % "slf4j-api" % V.slf4j withSources () withJavadoc (),
     Compile.logback
   )
 
-  val dbCommons = List(
-    Compile.dropwizardMetrics,
-    Compile.flyway,
-    Compile.slick,
-    Compile.sourcecode,
-    Compile.logback,
-    Compile.sqlite,
-    Compile.postgres,
-    Compile.slickHikari,
-    Test.scalaTest,
-    Test.pgEmbedded
-  )
+  def dbCommons = Def.setting {
+    List(
+      Compile.dropwizardMetrics,
+      Compile.flyway,
+      Compile.slick,
+      Compile.sourcecode,
+      Compile.logback,
+      Compile.sqlite,
+      Compile.postgres,
+      Compile.slickHikari,
+      Test.scalaTest.value,
+      Test.pgEmbedded
+    )
+  }
 
   def cli(scalaVersion: String) =
     List(
@@ -348,24 +377,30 @@ object Deps {
     Compile.slf4j
   )
 
-  val eclairRpcTest = List(
-    Test.akkaHttpTestkit,
-    Test.akkaStream,
-    Test.logback,
-    Test.scalaTest,
-    Test.scalacheck
-  )
+  def eclairRpcTest = Def.setting {
+    List(
+      Test.akkaHttpTestkit,
+      Test.akkaStream,
+      Test.logback,
+      Test.scalaTest.value,
+      Test.scalacheck
+    )
+  }
 
-  val feeProvider = List(
-    Compile.akkaHttp,
-    Compile.akkaActor,
-    Compile.akkaStream
-  )
+  def feeProvider = Def.setting {
+    List(
+      Compile.akkaHttp,
+      Compile.akkaActor,
+      Compile.akkaStream
+    )
+  }
 
-  val feeProviderTest = List(
-    Test.akkaTestkit,
-    Test.scalaTest
-  )
+  def feeProviderTest = Def.setting {
+    List(
+      Test.akkaTestkit,
+      Test.scalaTest.value
+    )
+  }
 
   val node = List(
     Compile.akkaActor,
@@ -375,20 +410,24 @@ object Deps {
     Compile.sqlite
   )
 
-  val nodeTest = List(
-    Test.akkaTestkit,
-    Test.scalaTest,
-    Test.pgEmbedded
-  )
+  val nodeTest = Def.setting {
+    List(
+      Test.akkaTestkit,
+      Test.scalaTest.value,
+      Test.pgEmbedded
+    )
+  }
 
-  val testkit = List(
-    Compile.slf4j,
-    Compile.scalacheck,
-    Compile.scalaTest,
-    Compile.scalaTestPlus,
-    Compile.pgEmbedded,
-    Test.akkaTestkit
-  )
+  val testkit = Def.setting {
+    List(
+      Compile.slf4j,
+      Compile.scalacheck,
+      Compile.scalaTest.value,
+      Compile.scalaTestPlus,
+      Compile.pgEmbedded,
+      Test.akkaTestkit
+    )
+  }
 
   def keyManager(scalaVersion: String) =
     List(
@@ -411,11 +450,13 @@ object Deps {
     Test.pgEmbedded
   )
 
-  val docs = List(
-    Compile.logback,
-    Test.scalaTest,
-    Test.logback
-  )
+  def docs = Def.setting {
+    List(
+      Compile.logback,
+      Test.scalaTest.value,
+      Test.logback
+    )
+  }
 
   val walletServerTest = List(
     Test.scalaMock,