diff --git a/browserup-proxy-core/build.gradle b/browserup-proxy-core/build.gradle
index 608493ecf..32a0ddb90 100644
--- a/browserup-proxy-core/build.gradle
+++ b/browserup-proxy-core/build.gradle
@@ -73,7 +73,7 @@ dependencies {
     implementation 'org.bouncycastle:bcpkix-jdk15on:1.63'
     implementation 'org.bouncycastle:bcprov-jdk15on:1.63'
     implementation 'org.brotli:dec:0.1.2'
-    implementation 'org.javassist:javassist:3.25.0-GA'
+    implementation 'org.javassist:javassist:3.26.0-GA'
     implementation 'org.seleniumhq.selenium:selenium-api:3.141.59'
     implementation "org.slf4j:jcl-over-slf4j:${slf4jVersion}"
     implementation "org.slf4j:slf4j-api:${slf4jVersion}"
diff --git a/browserup-proxy-dist/build.gradle b/browserup-proxy-dist/build.gradle
index 9f194cb35..b34c2fe03 100644
--- a/browserup-proxy-dist/build.gradle
+++ b/browserup-proxy-dist/build.gradle
@@ -73,7 +73,7 @@ dependencies {
     implementation "org.apache.logging.log4j:log4j-slf4j-impl:${log4jVersion}"
     implementation "org.eclipse.jetty:jetty-server:${jettyVersion}"
     implementation "org.eclipse.jetty:jetty-servlet:${jettyVersion}"
-    implementation 'org.javassist:javassist:3.25.0-GA'
+    implementation 'org.javassist:javassist:3.26.0-GA'
 }
 
 applicationName = 'browserup-proxy'