diff --git a/bin/restore_gradle_dependency_cache b/bin/restore_gradle_dependency_cache
index d5a3f746..4eba7ac5 100755
--- a/bin/restore_gradle_dependency_cache
+++ b/bin/restore_gradle_dependency_cache
@@ -1,7 +1,7 @@
 #!/bin/bash -eu
 
 # The key is shared with `bin/save_gradle_dependency_cache`
-GRADLE_DEPENDENCY_CACHE_KEY="GRADLE_DEPENDENCY_CACHE"
+GRADLE_DEPENDENCY_CACHE_KEY="${GRADLE_DEPENDENCY_CACHE_PROJECT_PREFIX}GRADLE_DEPENDENCY_CACHE"
 
 echo "Restoring Gradle dependency cache..."
 
diff --git a/bin/save_gradle_dependency_cache b/bin/save_gradle_dependency_cache
index f0a08fff..ff5c341a 100755
--- a/bin/save_gradle_dependency_cache
+++ b/bin/save_gradle_dependency_cache
@@ -1,7 +1,7 @@
 #!/bin/bash -eu
 
 # The key is shared with `bin/restore_gradle_dependency_cache`
-GRADLE_DEPENDENCY_CACHE_KEY="GRADLE_DEPENDENCY_CACHE"
+GRADLE_DEPENDENCY_CACHE_KEY="${GRADLE_DEPENDENCY_CACHE_PROJECT_PREFIX}GRADLE_DEPENDENCY_CACHE"
 
 echo "Saving Gradle dependency cache..."