diff --git a/pom.xml b/pom.xml
index aeeb1fb..e970baa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -57,7 +57,7 @@
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcprov-jdk18on</artifactId>
-      <version>1.78.1</version>
+      <version>1.84</version>
     </dependency>
 
     <!-- HTTP client -->