diff --git a/pom.xml b/pom.xml
index 5ab46ac30..c195f8bae 100644
--- a/pom.xml
+++ b/pom.xml
@@ -325,8 +325,8 @@
       </dependency>
       <dependency>
         <groupId>org.bouncycastle</groupId>
-        <artifactId>bcpkix-jdk15on</artifactId>
-        <version>1.70</version>
+        <artifactId>bcpkix-jdk18on</artifactId>
+        <version>1.77</version>
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/weixin-java-channel/pom.xml b/weixin-java-channel/pom.xml
index 66536cf08..0192d52c3 100644
--- a/weixin-java-channel/pom.xml
+++ b/weixin-java-channel/pom.xml
@@ -49,7 +49,7 @@
 
     <dependency>
       <groupId>org.bouncycastle</groupId>
-      <artifactId>bcpkix-jdk15on</artifactId>
+      <artifactId>bcpkix-jdk18on</artifactId>
     </dependency>
     <dependency>
       <groupId>org.projectlombok</groupId>
diff --git a/weixin-java-miniapp/pom.xml b/weixin-java-miniapp/pom.xml
index b6b219cb4..00c6a9057 100644
--- a/weixin-java-miniapp/pom.xml
+++ b/weixin-java-miniapp/pom.xml
@@ -73,7 +73,7 @@
     </dependency>
     <dependency>
       <groupId>org.bouncycastle</groupId>
-      <artifactId>bcpkix-jdk15on</artifactId>
+      <artifactId>bcpkix-jdk18on</artifactId>
     </dependency>
     <dependency>
       <groupId>org.projectlombok</groupId>
diff --git a/weixin-java-pay/pom.xml b/weixin-java-pay/pom.xml
index a26524d26..591430c83 100644
--- a/weixin-java-pay/pom.xml
+++ b/weixin-java-pay/pom.xml
@@ -42,7 +42,7 @@
 
     <dependency>
       <groupId>org.bouncycastle</groupId>
-      <artifactId>bcpkix-jdk15on</artifactId>
+      <artifactId>bcpkix-jdk18on</artifactId>
     </dependency>
 
     <dependency>