diff --git a/mid-java-client-core/pom.xml b/mid-java-client-core/pom.xml
index 770a705..a3030bc 100644
--- a/mid-java-client-core/pom.xml
+++ b/mid-java-client-core/pom.xml
@@ -26,11 +26,11 @@
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
-            <artifactId>bcprov-jdk15on</artifactId>
+            <artifactId>bcprov-jdk18on</artifactId>
         </dependency>
         <dependency>
             <groupId>org.bouncycastle</groupId>
-            <artifactId>bcpkix-jdk15on</artifactId>
+            <artifactId>bcpkix-jdk18on</artifactId>
         </dependency>
     </dependencies>
 
diff --git a/pom.xml b/pom.xml
index 921027e..b061902 100644
--- a/pom.xml
+++ b/pom.xml
@@ -99,13 +99,13 @@
             </dependency>
             <dependency>
                 <groupId>org.bouncycastle</groupId>
-                <artifactId>bcprov-jdk15on</artifactId>
-                <version>1.70</version>
+                <artifactId>bcprov-jdk18on</artifactId>
+                <version>1.75</version>
             </dependency>
             <dependency>
                 <groupId>org.bouncycastle</groupId>
-                <artifactId>bcpkix-jdk15on</artifactId>
-                <version>1.70</version>
+                <artifactId>bcpkix-jdk18on</artifactId>
+                <version>1.75</version>
             </dependency>
             <dependency>
                 <groupId>org.junit.jupiter</groupId>