diff --git a/java/src/IceGridGUI/proguard-jar.gradle b/java/src/IceGridGUI/proguard-jar.gradle
index cd9b6d7d9ca..f2c8b08e5e7 100644
--- a/java/src/IceGridGUI/proguard-jar.gradle
+++ b/java/src/IceGridGUI/proguard-jar.gradle
@@ -8,7 +8,7 @@ buildscript {
     }
 
     dependencies {
-        classpath "com.guardsquare:proguard-gradle:7.3.1"
+        classpath "com.guardsquare:proguard-gradle:7.4.0-beta02"
     }
 }