diff --git a/pom.xml b/pom.xml
index 44b958c..3b5e7a6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -261,13 +261,13 @@
         <dependency>
             <groupId>com.amazonaws</groupId>
             <artifactId>aws-encryption-sdk-java</artifactId>
-            <version>2.2.0</version>
+            <version>2.4.1</version>
         </dependency>
-        <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk15on -->
         <dependency>
             <groupId>org.bouncycastle</groupId>
-            <artifactId>bcpkix-jdk15on</artifactId>
-            <version>1.68</version>
+            <artifactId>bcpkix-jdk18on</artifactId>
+            <version>1.75</version>
+            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.projectlombok</groupId>