diff --git a/weixin-java-cp/pom.xml b/weixin-java-cp/pom.xml
index 882b7841b..01a6f9757 100644
--- a/weixin-java-cp/pom.xml
+++ b/weixin-java-cp/pom.xml
@@ -84,7 +84,7 @@
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcprov-jdk18on</artifactId>
-      <version>1.77</version>
+      <version>1.78</version>
     </dependency>
 
     <dependency>