diff --git a/pom.xml b/pom.xml
index 521e296..662e7d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -75,12 +75,6 @@
                 <artifactId>tosan-mask-spring-boot-starter</artifactId>
                 <version>${tosan.mask.version}</version>
             </dependency>
-            <dependency>
-                <groupId>org.bouncycastle</groupId>
-                <artifactId>bcprov-jdk18on</artifactId>
-                <version>1.76</version>
-                <scope>runtime</scope>
-            </dependency>
         </dependencies>
     </dependencyManagement>
 
diff --git a/tosan-httpclient-spring-boot-core/pom.xml b/tosan-httpclient-spring-boot-core/pom.xml
index d712a66..4f3eff1 100644
--- a/tosan-httpclient-spring-boot-core/pom.xml
+++ b/tosan-httpclient-spring-boot-core/pom.xml
@@ -52,11 +52,6 @@
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5-fluent</artifactId>
         </dependency>
-        <dependency>
-            <groupId>org.bouncycastle</groupId>
-            <artifactId>bcprov-jdk18on</artifactId>
-            <scope>runtime</scope>
-        </dependency>
         <dependency>
             <groupId>com.tosan.tools</groupId>
             <artifactId>tosan-mask-spring-boot-starter</artifactId>
diff --git a/tosan-httpclient-spring-boot-starter/pom.xml b/tosan-httpclient-spring-boot-starter/pom.xml
index 5f411d9..152d0dd 100644
--- a/tosan-httpclient-spring-boot-starter/pom.xml
+++ b/tosan-httpclient-spring-boot-starter/pom.xml
@@ -90,10 +90,6 @@
                     <groupId>org.springframework.boot</groupId>
                     <artifactId>spring-boot-starter-logging</artifactId>
                 </exclusion>
-                <exclusion>
-                    <groupId>org.bouncycastle</groupId>
-                    <artifactId>bcpkix-jdk15on</artifactId>
-                </exclusion>
                 <exclusion>
                     <groupId>io.github.openfeign</groupId>
                     <artifactId>feign-core</artifactId>