diff --git a/pom.xml b/pom.xml
index 018e160a78..89a95fb3bc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -201,7 +201,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.1.10</version>
+            <version>1.2.7</version>
         </dependency>
 
         <!--unit test-->
@@ -279,7 +279,7 @@
             <dependency>
                 <groupId>org.bouncycastle</groupId>
                 <artifactId>bcpg-jdk15on</artifactId>
-                <version>1.56</version>
+                <version>1.66</version>
             </dependency>
             <dependency>
                 <groupId>org.bouncycastle</groupId>