diff --git a/cas/cas.gradle b/cas/cas.gradle
index 0e06c6df3b..e6c2276d3d 100644
--- a/cas/cas.gradle
+++ b/cas/cas.gradle
@@ -5,7 +5,7 @@ dependencies {
             "org.springframework:spring-context:$springVersion",
             "org.springframework:spring-beans:$springVersion",
             "org.springframework:spring-web:$springVersion",
-            "org.jasig.cas.client:cas-client-core:3.2.1"
+            "org.jasig.cas.client:cas-client-core:3.3.3"
 
     optional "net.sf.ehcache:ehcache-core:$ehcacheVersion"
 
diff --git a/cas/pom.xml b/cas/pom.xml
index 3fdd0fc287..53c07921d1 100644
--- a/cas/pom.xml
+++ b/cas/pom.xml
@@ -52,7 +52,7 @@
     <dependency>
       <groupId>org.jasig.cas.client</groupId>
       <artifactId>cas-client-core</artifactId>
-      <version>3.2.1</version>
+      <version>3.3.3</version>
       <scope>compile</scope>
     </dependency>
     <dependency>
diff --git a/samples/cas/sample-xml/cassample.gradle b/samples/cas/sample-xml/cassample.gradle
index 26b98791e4..84915c8215 100644
--- a/samples/cas/sample-xml/cassample.gradle
+++ b/samples/cas/sample-xml/cassample.gradle
@@ -30,7 +30,7 @@ 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'),
diff --git a/samples/cas/sample-xml/pom.xml b/samples/cas/sample-xml/pom.xml
index cdfb0d39ef..9f8e20e25e 100644
--- a/samples/cas/sample-xml/pom.xml
+++ b/samples/cas/sample-xml/pom.xml
@@ -60,7 +60,7 @@
     <dependency>
       <groupId>org.jasig.cas.client</groupId>
       <artifactId>cas-client-core</artifactId>
-      <version>3.1.12</version>
+      <version>3.3.3</version>
       <scope>compile</scope>
     </dependency>
     <dependency>