diff --git a/browserup-proxy-core/build.gradle b/browserup-proxy-core/build.gradle
index a5049fe9b..06c4dcc20 100644
--- a/browserup-proxy-core/build.gradle
+++ b/browserup-proxy-core/build.gradle
@@ -70,7 +70,7 @@ dependencies {
     implementation "com.fasterxml.jackson.core:jackson-core:${jacksonVersion}"
     implementation "com.fasterxml.jackson.core:jackson-databind:${jacksonVersion}"
     implementation "com.fasterxml.jackson.core:jackson-annotations:${jacksonVersion}"
-    implementation 'com.google.guava:guava:28.2-jre'
+    implementation 'com.google.guava:guava:30.0-jre'
     implementation 'com.jcraft:jzlib:1.1.3'
     implementation 'dnsjava:dnsjava:3.1.0'
     implementation "io.netty:netty-all:${nettyVersion}"
diff --git a/browserup-proxy-mitm/build.gradle b/browserup-proxy-mitm/build.gradle
index e5915b26d..bb07f8c37 100644
--- a/browserup-proxy-mitm/build.gradle
+++ b/browserup-proxy-mitm/build.gradle
@@ -57,7 +57,7 @@ uploadArchives {
 }
 
 dependencies {
-    implementation 'com.google.guava:guava:28.2-jre'
+    implementation 'com.google.guava:guava:30.0-jre'
 
     implementation "org.bouncycastle:bcpkix-jdk15on:${bcpVersion}"
     implementation "org.bouncycastle:bcprov-jdk15on:${bcpVersion}"
diff --git a/browserup-proxy-rest/build.gradle b/browserup-proxy-rest/build.gradle
index 303ecdc60..7875a137a 100644
--- a/browserup-proxy-rest/build.gradle
+++ b/browserup-proxy-rest/build.gradle
@@ -64,7 +64,7 @@ uploadArchives {
 dependencies {
     implementation project(':browserup-proxy-core')
 
-    implementation 'com.google.guava:guava:28.2-jre'
+    implementation 'com.google.guava:guava:30.0-jre'
     implementation "com.google.inject:guice:${guiceVersion}"
     implementation "com.google.inject.extensions:guice-servlet:${guiceVersion}"
     implementation "com.google.inject.extensions:guice-multibindings:${guiceVersion}"
diff --git a/build.gradle b/build.gradle
index 3c24d0d25..2979947c5 100644
--- a/build.gradle
+++ b/build.gradle
@@ -17,7 +17,7 @@ configurations.all {
         // conflicts later. BrowserUpDriver _should_ be allowed to use whatever libs it wants.
         //resolutionStrategy.force 'com.google.guava:guava:*', 'com.google.guava:guava:22.0'
         // UPDATE Jan 27, 2019: I forked org.littleshoot.proxy to Browserup and upgraded it to Guava 27.0.1-jre
-        resolutionStrategy.force 'com.google.guava:guava:*', 'com.google.guava:guava:28.2-jre'
+        resolutionStrategy.force 'com.google.guava:guava:*', 'com.google.guava:guava:30.0-jre'
     }
 }