diff --git a/cas-client-core/pom.xml b/cas-client-core/pom.xml
index cb9c171..d763a57 100644
--- a/cas-client-core/pom.xml
+++ b/cas-client-core/pom.xml
@@ -69,7 +69,7 @@
             <groupId>log4j</groupId>
             <artifactId>log4j</artifactId>
             <scope>test</scope>
-            <version>1.2.15</version>
+            <version>1.2.17</version>
             <exclusions>
                 <exclusion>
                     <artifactId>jmxri</artifactId>
diff --git a/pom.xml b/pom.xml
index 81c6d86..b3a1f8e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -201,7 +201,7 @@
                 <groupId>log4j</groupId>
                 <artifactId>log4j</artifactId>
                 <scope>test</scope>
-                <version>1.2.15</version>
+                <version>1.2.17</version>
                 <exclusions>
                     <exclusion>
                         <artifactId>jmxri</artifactId>