diff --git a/core-test/src/test/scala/org/bitcoins/core/crypto/ECPublicKeyTest.scala b/core-test/src/test/scala/org/bitcoins/core/crypto/ECPublicKeyTest.scala
index 5126378ee5..4187fc4809 100644
--- a/core-test/src/test/scala/org/bitcoins/core/crypto/ECPublicKeyTest.scala
+++ b/core-test/src/test/scala/org/bitcoins/core/crypto/ECPublicKeyTest.scala
@@ -2,7 +2,6 @@ package org.bitcoins.core.crypto
 
 import org.bitcoins.testkit.core.gen.CryptoGenerators
 import org.bitcoins.testkit.util.BitcoinSUnitTest
-import org.scalatest.prop.PropertyChecks
 import scodec.bits._
 
 class ECPublicKeyTest extends BitcoinSUnitTest {
@@ -30,7 +29,7 @@ class ECPublicKeyTest extends BitcoinSUnitTest {
   }
 
   it must "have serialization symmetry from ECPublicKey -> ECPoint -> ECPublicKey" in {
-    PropertyChecks.forAll(CryptoGenerators.publicKey) { pubKey =>
+    forAll(CryptoGenerators.publicKey) { pubKey =>
       val p = pubKey.toPoint
       val pub2 = ECPublicKey.fromPoint(p, pubKey.isCompressed)
       assert(pubKey == pub2)
diff --git a/core-test/src/test/scala/org/bitcoins/core/number/BasicArithmeticSpec.scala b/core-test/src/test/scala/org/bitcoins/core/number/BasicArithmeticSpec.scala
index d222ea1ccc..a887a86f46 100644
--- a/core-test/src/test/scala/org/bitcoins/core/number/BasicArithmeticSpec.scala
+++ b/core-test/src/test/scala/org/bitcoins/core/number/BasicArithmeticSpec.scala
@@ -1,7 +1,6 @@
 package org.bitcoins.core.number
 import org.bitcoins.testkit.core.gen.NumberGenerator
 import org.bitcoins.testkit.util.BitcoinSUnitTest
-import org.scalatest.prop.PropertyChecks
 
 class BasicArithmeticSpec extends BitcoinSUnitTest {
 
@@ -30,7 +29,7 @@ class BasicArithmeticSpec extends BitcoinSUnitTest {
   behavior of "BasicArithmetic"
 
   it must "multiply safely and unsafely with an int" in {
-    PropertyChecks.forAll(NumberGenerator.bigInts, numWrapperGen) { (i, num) =>
+    forAll(NumberGenerator.bigInts, numWrapperGen) { (i, num) =>
       val unsafe = num * i
       val safe = num.multiplySafe(i)
       assert(safe.toOption.contains(unsafe))
@@ -38,7 +37,7 @@ class BasicArithmeticSpec extends BitcoinSUnitTest {
   }
 
   it must "multiply safely and unsafely with itself" in {
-    PropertyChecks.forAll(numWrapperGen, numWrapperGen) { (first, second) =>
+    forAll(numWrapperGen, numWrapperGen) { (first, second) =>
       val unsafe = first * second
       val safe = first.multiplySafe(second)
       assert(safe.toOption.contains(unsafe))
@@ -46,7 +45,7 @@ class BasicArithmeticSpec extends BitcoinSUnitTest {
   }
 
   it must "add safely and unsafely" in {
-    PropertyChecks.forAll(numWrapperGen, numWrapperGen) { (first, second) =>
+    forAll(numWrapperGen, numWrapperGen) { (first, second) =>
       val unsafe = first + second
       val safe = first.addSafe(second)
       assert(safe.toOption.contains(unsafe))
@@ -54,7 +53,7 @@ class BasicArithmeticSpec extends BitcoinSUnitTest {
   }
 
   it must "subtract safely and unsafely" in {
-    PropertyChecks.forAll(numWrapperGen, numWrapperGen) { (first, second) =>
+    forAll(numWrapperGen, numWrapperGen) { (first, second) =>
       val unsafe = first - second
       val safe = first.subtractSafe(second)
       assert(safe.toOption.contains(unsafe))
diff --git a/core-test/src/test/scala/org/bitcoins/core/number/UInt5Test.scala b/core-test/src/test/scala/org/bitcoins/core/number/UInt5Test.scala
index d39e8d6689..0a1bda9618 100644
--- a/core-test/src/test/scala/org/bitcoins/core/number/UInt5Test.scala
+++ b/core-test/src/test/scala/org/bitcoins/core/number/UInt5Test.scala
@@ -1,13 +1,10 @@
 package org.bitcoins.core.number
 
 import org.bitcoins.testkit.core.gen.NumberGenerator
-import org.scalatest.prop.PropertyChecks
-import org.scalatest.{FlatSpec, MustMatchers}
+import org.bitcoins.testkit.util.BitcoinSUnitTest
 import org.slf4j.LoggerFactory
 
-class UInt5Test extends FlatSpec with MustMatchers with PropertyChecks {
-
-  private val logger = LoggerFactory.getLogger(this.getClass)
+class UInt5Test extends BitcoinSUnitTest {
 
   behavior of "UInt5"
 
diff --git a/core-test/src/test/scala/org/bitcoins/core/protocol/ln/currency/MilliSatoshisTest.scala b/core-test/src/test/scala/org/bitcoins/core/protocol/ln/currency/MilliSatoshisTest.scala
index 2d911df656..9e9cf73bb2 100644
--- a/core-test/src/test/scala/org/bitcoins/core/protocol/ln/currency/MilliSatoshisTest.scala
+++ b/core-test/src/test/scala/org/bitcoins/core/protocol/ln/currency/MilliSatoshisTest.scala
@@ -1,9 +1,8 @@
 package org.bitcoins.core.protocol.ln.currency
 
-import org.bitcoins.testkit.core.gen.{CurrencyUnitGenerator, NumberGenerator}
 import org.bitcoins.testkit.core.gen.ln.LnCurrencyUnitGen
+import org.bitcoins.testkit.core.gen.{CurrencyUnitGenerator, NumberGenerator}
 import org.bitcoins.testkit.util.BitcoinSUnitTest
-import org.scalatest.prop.PropertyChecks
 import org.scalacheck.Gen
 
 class MilliSatoshisTest extends BitcoinSUnitTest {
diff --git a/core-test/src/test/scala/org/bitcoins/core/util/BitcoinScriptUtilTest.scala b/core-test/src/test/scala/org/bitcoins/core/util/BitcoinScriptUtilTest.scala
index c6a9dd424d..91b15bf6a1 100644
--- a/core-test/src/test/scala/org/bitcoins/core/util/BitcoinScriptUtilTest.scala
+++ b/core-test/src/test/scala/org/bitcoins/core/util/BitcoinScriptUtilTest.scala
@@ -10,17 +10,13 @@ import org.bitcoins.core.script.locktime.OP_CHECKLOCKTIMEVERIFY
 import org.bitcoins.core.script.reserved.{OP_NOP, OP_RESERVED}
 import org.bitcoins.core.script.result.ScriptErrorWitnessPubKeyType
 import org.bitcoins.testkit.core.gen.ScriptGenerators
-import org.scalatest.prop.PropertyChecks
-import org.scalatest.{FlatSpec, MustMatchers}
+import org.bitcoins.testkit.util.BitcoinSUnitTest
 import scodec.bits.ByteVector
 
 /**
   * Created by chris on 3/2/16.
   */
-class BitcoinScriptUtilTest
-    extends FlatSpec
-    with MustMatchers
-    with PropertyChecks {
+class BitcoinScriptUtilTest extends BitcoinSUnitTest {
 
   //from b30d3148927f620f5b1228ba941c211fdabdae75d0ba0b688a58accbf018f3cc
   val asm = TestUtil.p2pkhScriptPubKey.asm
diff --git a/project/Deps.scala b/project/Deps.scala
index 2d1833bad0..6abe5987d9 100644
--- a/project/Deps.scala
+++ b/project/Deps.scala
@@ -6,7 +6,9 @@ object Deps {
     val bouncyCastle = "1.55"
     val logback = "1.2.3"
     val scalacheck = "1.14.2"
-    val scalaTest = "3.0.8"
+    val scalaTest = "3.1.0"
+
+    val scalaTestPlus = "3.1.0.0" //super annoying... https://oss.sonatype.org/content/groups/public/org/scalatestplus/
     val slf4j = "1.7.29"
     val spray = "1.3.5"
     val zeromq = "0.5.1"
@@ -97,6 +99,7 @@ object Deps {
 
     val scalacheck = "org.scalacheck" %% "scalacheck" % V.scalacheck withSources () withJavadoc ()
     val scalaTest = "org.scalatest" %% "scalatest" % V.scalaTest withSources () withJavadoc ()
+    val scalaTestPlus = "org.scalatestplus" %% "scalacheck-1-14" % V.scalaTestPlus withSources() withJavadoc()
   }
 
   object Test {
@@ -231,6 +234,7 @@ object Deps {
     Compile.slf4j,
     Compile.scalacheck,
     Compile.scalaTest,
+    Compile.scalaTestPlus,
     Test.akkaTestkit
   )
 
diff --git a/testkit/src/main/scala/org/bitcoins/testkit/fixtures/WalletDAOFixture.scala b/testkit/src/main/scala/org/bitcoins/testkit/fixtures/WalletDAOFixture.scala
index db9d621786..8bd8d8b65b 100644
--- a/testkit/src/main/scala/org/bitcoins/testkit/fixtures/WalletDAOFixture.scala
+++ b/testkit/src/main/scala/org/bitcoins/testkit/fixtures/WalletDAOFixture.scala
@@ -2,6 +2,7 @@ package org.bitcoins.testkit.fixtures
 
 import org.bitcoins.testkit.wallet.BitcoinSWalletTest
 import org.scalatest._
+import org.scalatest.flatspec.FixtureAsyncFlatSpec
 import org.bitcoins.wallet.models._
 import org.bitcoins.wallet.config.WalletAppConfig
 import org.bitcoins.wallet.db.WalletDbManagement
@@ -11,7 +12,7 @@ case class WalletDAOs(
     addressDAO: AddressDAO,
     utxoDAO: SpendingInfoDAO)
 
-trait WalletDAOFixture extends fixture.AsyncFlatSpec with BitcoinSWalletTest {
+trait WalletDAOFixture extends FixtureAsyncFlatSpec with BitcoinSWalletTest {
 
   private lazy val daos: WalletDAOs = {
     val account = AccountDAO()
diff --git a/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSAsyncTest.scala b/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSAsyncTest.scala
index 24eac78883..0673e7bc2d 100644
--- a/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSAsyncTest.scala
+++ b/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSAsyncTest.scala
@@ -9,6 +9,9 @@ import org.bitcoins.core.util.BitcoinSLogger
 import org.scalacheck.{Gen, Shrink}
 import org.scalactic.anyvals.PosInt
 import org.scalatest._
+import org.scalatest.flatspec.FixtureAsyncFlatSpec
+import org.scalatest.flatspec.AsyncFlatSpec
+import org.scalatest.matchers.must.Matchers
 import org.scalatest.concurrent.AsyncTimeLimitedTests
 import org.scalatest.time.Span
 import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks
@@ -23,7 +26,7 @@ import scala.concurrent.duration.DurationInt
 trait BaseAsyncTest
     extends BeforeAndAfter
     with BeforeAndAfterAll
-    with MustMatchers
+    with Matchers
     with ScalaCheckPropertyChecks
     with AsyncTimeLimitedTests
     with BitcoinSLogger { this: AsyncTestSuite =>
@@ -197,16 +200,16 @@ trait BaseAsyncTest
 /** A trait that uses [[AsyncFlatSpec]] to execute tests
   * This is different than [[BitcoinsBaseAsyncTest]] in the sense that
   * it extends [[AsyncFlatSpec]]. Some test cases in bitcoin-s we want
-  * to provide fixtures, which means that suite needs to extend [[org.scalatest.fixture.AsyncFlatSpec fixture.AsyncFlatSpec]]
+  * to provide fixtures, which means that suite needs to extend [[FixtureAsyncFlatSpec FixtureAsyncFlatSpec]]
   * to be able to use that fixture
   *
   * This test trait should be used for async tests that do NOT use a fixture.
   * */
 trait BitcoinSAsyncTest extends AsyncFlatSpec with BaseAsyncTest
 
-/** A trait that uses [[fixture.AsyncFlatSpec fixture.AsyncFlatSpec]] to execute tests
+/** A trait that uses [[FixtureAsyncFlatSpec AsyncFlatSpec]] to execute tests
   * This is different than [[BitcoinSAsyncTest BitcoinSAsyncTest]] as you can use a fixture
   * with this test suite.
   *
   * */
-trait BitcoinSAsyncFixtureTest extends fixture.AsyncFlatSpec with BaseAsyncTest
+trait BitcoinSAsyncFixtureTest extends FixtureAsyncFlatSpec with BaseAsyncTest
diff --git a/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSUnitTest.scala b/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSUnitTest.scala
index 9bda5e01e2..c3e2b568b7 100644
--- a/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSUnitTest.scala
+++ b/testkit/src/main/scala/org/bitcoins/testkit/util/BitcoinSUnitTest.scala
@@ -6,14 +6,15 @@ import org.scalactic.anyvals.PosInt
 import org.scalatest.concurrent.TimeLimitedTests
 import org.scalatest.time.Span
 import org.scalatestplus.scalacheck.ScalaCheckPropertyChecks
-import org.scalatest.{FlatSpec, MustMatchers}
+import org.scalatest.matchers.must.Matchers
+import org.scalatest.flatspec.AnyFlatSpec
 
 import scala.concurrent.duration.DurationInt
 
-/** A wrapper for boiler plate testing procesures in bitcoin-s */
+/** A wrapper for boi ler plate testing procesures in bitcoin-s */
 abstract class BitcoinSUnitTest
-    extends FlatSpec
-    with MustMatchers
+    extends AnyFlatSpec
+    with Matchers
     with ScalaCheckPropertyChecks
     with TimeLimitedTests
     with BitcoinSLogger {