diff --git a/cas/cas.gradle b/cas/cas.gradle
index b3e75a3fb0..aced9dbff4 100644
--- a/cas/cas.gradle
+++ b/cas/cas.gradle
@@ -5,8 +5,8 @@ dependencies {
             "org.springframework:spring-context:$springVersion",
             "org.springframework:spring-beans:$springVersion",
             "org.springframework:spring-web:$springVersion",
-            "org.jasig.cas.client:cas-client-core:3.1.12",
+            "org.jasig.cas.client:cas-client-core:3.3.3",
             "net.sf.ehcache:ehcache:$ehcacheVersion"
 
     provided 'javax.servlet:servlet-api:2.5'
-}            
\ No newline at end of file
+}            
diff --git a/samples/cas/sample/cassample.gradle b/samples/cas/sample/cassample.gradle
index 79d7fc5e1e..343f57166a 100644
--- a/samples/cas/sample/cassample.gradle
+++ b/samples/cas/sample/cassample.gradle
@@ -34,7 +34,7 @@ dependencies {
 
     compile project(':spring-security-core'),
             project(':spring-security-cas'),
-            "org.jasig.cas.client:cas-client-core:3.1.12"
+            "org.jasig.cas.client:cas-client-core:3.3.3"
 
     runtime project(':spring-security-web'),
             project(':spring-security-config'),
@@ -126,4 +126,4 @@ gradle.taskGraph.whenReady {graph ->
 
 def casServer() {
     tasks.getByPath(':spring-security-samples-casserver:casServer')
-}
\ No newline at end of file
+}