diff --git a/pom.xml b/pom.xml
index 7b67e55..d731054 100644
--- a/pom.xml
+++ b/pom.xml
@@ -444,7 +444,7 @@ under the License.
     <dependency>
       <groupId>log4j</groupId>
       <artifactId>log4j</artifactId>
-      <version>1.2.12</version>
+      <version>1.2.17</version>
       <optional>true</optional>
     </dependency>
     <dependency>
@@ -456,7 +456,7 @@ under the License.
     <dependency>
       <groupId>avalon-framework</groupId>
       <artifactId>avalon-framework</artifactId>
-      <version>4.1.3</version>
+      <version>4.1.5</version>
       <optional>true</optional>
     </dependency>
     <dependency>