diff --git a/gradle.properties b/gradle.properties
index fd5df98900..1ee2f5cbfd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -42,7 +42,7 @@ antVersion=1.10.17
 awsVersion=1.12.797
 apereoPortletUtilsVersion=1.1.3
 aspectjVersion=1.9.25.1
-casClientVersion=3.6.2
+casClientVersion=3.6.4
 ccppVersion=1.0
 bouncyVersion=1.70
 cernunnosVersion=1.4.0