diff --git a/tooling/custom-lint-rules/build.gradle b/tooling/custom-lint-rules/build.gradle
old mode 100755
new mode 100644
index 991a16e38..b4efd77ed
--- a/tooling/custom-lint-rules/build.gradle
+++ b/tooling/custom-lint-rules/build.gradle
@@ -18,7 +18,7 @@ buildscript {
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "com.android.tools.build:gradle:$gradle_version"
-        classpath 'com.guardsquare:proguard-gradle:7.3.0'
+        classpath 'com.guardsquare:proguard-gradle:7.9.1'
     }
 }