diff --git a/core/build.gradle b/core/build.gradle
index fdffcfabf..0ce238a64 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -8,7 +8,7 @@ version = '0.16-SNAPSHOT'
 dependencies {
     compile 'org.bouncycastle:bcprov-jdk15on:1.60'
     implementation 'com.lambdaworks:scrypt:1.4.0'
-    implementation 'com.google.guava:guava:27.0.1-android'
+    implementation 'com.google.guava:guava:27.1-android'
     compile 'com.google.protobuf:protobuf-java:3.6.1'
     implementation 'com.squareup.okhttp3:okhttp:3.12.1'
     implementation 'org.slf4j:slf4j-api:1.7.25'
diff --git a/examples/build.gradle b/examples/build.gradle
index 33df8e9b0..63a53a7bd 100644
--- a/examples/build.gradle
+++ b/examples/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'eclipse'
 
 dependencies {
     implementation project(':bitcoinj-core')
-    implementation 'com.google.guava:guava:27.0.1-android'
+    implementation 'com.google.guava:guava:27.1-android'
     implementation 'net.sf.jopt-simple:jopt-simple:5.0.4'
     implementation 'org.slf4j:slf4j-jdk14:1.7.25'
     implementation 'org.fusesource.leveldbjni:leveldbjni-all:1.8'
diff --git a/tools/build.gradle b/tools/build.gradle
index 9c14fa3db..f158493bd 100644
--- a/tools/build.gradle
+++ b/tools/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'eclipse'
 
 dependencies {
     implementation project(':bitcoinj-core')
-    implementation 'com.google.guava:guava:27.0.1-android'
+    implementation 'com.google.guava:guava:27.1-android'
     implementation 'net.sf.jopt-simple:jopt-simple:5.0.4'
     implementation 'org.slf4j:slf4j-jdk14:1.7.25'
 }
diff --git a/wallettemplate/build.gradle b/wallettemplate/build.gradle
index c02954b4d..76a22c911 100644
--- a/wallettemplate/build.gradle
+++ b/wallettemplate/build.gradle
@@ -9,7 +9,7 @@ apply plugin: 'org.openjfx.javafxplugin'
 
 dependencies {
     implementation project(':bitcoinj-core')
-    implementation 'com.google.guava:guava:27.0.1-android'
+    implementation 'com.google.guava:guava:27.1-android'
     implementation 'org.fxmisc.easybind:easybind:1.0.3'
     implementation 'de.jensd:fontawesomefx:8.0.0'
     implementation 'net.glxn:qrgen:1.3'