diff --git a/xtrasonnet/pom.xml b/xtrasonnet/pom.xml
index e85a9be..b9b590e 100644
--- a/xtrasonnet/pom.xml
+++ b/xtrasonnet/pom.xml
@@ -115,7 +115,7 @@
         <dependency>
             <groupId>org.bouncycastle</groupId>
             <artifactId>bcprov-jdk18on</artifactId>
-            <version>1.77</version>
+            <version>1.78</version>
         </dependency>
         <!-- crypto deps: end -->
         <!-- test deps: start -->