diff --git a/browserup-proxy-core/build.gradle b/browserup-proxy-core/build.gradle
index 7602ab83e..5faa5f564 100644
--- a/browserup-proxy-core/build.gradle
+++ b/browserup-proxy-core/build.gradle
@@ -69,7 +69,7 @@ dependencies {
         exclude(module: 'netty')
     }
     implementation 'dnsjava:dnsjava:2.1.8'
-    implementation 'io.netty:netty-all:4.1.34.Final'
+    implementation 'io.netty:netty-all:4.1.35.Final'
     implementation 'org.bouncycastle:bcpkix-jdk15on:1.56'
     implementation 'org.bouncycastle:bcprov-jdk15on:1.56'
     implementation 'org.javassist:javassist:3.21.0-GA'
diff --git a/browserup-proxy-mitm/build.gradle b/browserup-proxy-mitm/build.gradle
index fbd881f02..3fdaf80a1 100644
--- a/browserup-proxy-mitm/build.gradle
+++ b/browserup-proxy-mitm/build.gradle
@@ -62,7 +62,7 @@ dependencies {
     implementation 'org.bouncycastle:bcpkix-jdk15on:1.56'
     implementation 'org.bouncycastle:bcprov-jdk15on:1.56'
 
-    implementation 'io.netty:netty-all:4.1.25.Final'
+    implementation 'io.netty:netty-all:4.1.35.Final'
     implementation 'org.slf4j:jcl-over-slf4j:1.7.22'
     implementation 'org.slf4j:slf4j-api:1.7.22'
     implementation 'xyz.rogfam:littleproxy:2.0.0-beta-3'
diff --git a/browserup-proxy-rest/build.gradle b/browserup-proxy-rest/build.gradle
index bd991e78d..84f401e00 100644
--- a/browserup-proxy-rest/build.gradle
+++ b/browserup-proxy-rest/build.gradle
@@ -64,7 +64,7 @@ dependencies {
     implementation 'com.google.inject.extensions:guice-servlet:4.2.2'
     implementation 'com.google.inject.extensions:guice-multibindings:4.2.2'
     implementation 'com.google.sitebricks:sitebricks:0.8.10'
-    implementation 'io.netty:netty-all:4.1.33.Final'
+    implementation 'io.netty:netty-all:4.1.35.Final'
     implementation 'net.sf.jopt-simple:jopt-simple:3.2'
     implementation 'org.eclipse.jetty:jetty-server:7.3.0.v20110203'
     implementation 'org.eclipse.jetty:jetty-servlet:7.3.0.v20110203'