diff --git a/gradle.properties b/gradle.properties
index 80382f4bea..db2c399aca 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
-gaeVersion=1.9.23
+gaeVersion=1.9.56
 springBootVersion=2.0.0.M2
 version=5.0.0.BUILD-SNAPSHOT