diff --git a/lib/jopenssl/version.rb b/lib/jopenssl/version.rb
index c1b8586d..56a75d22 100644
--- a/lib/jopenssl/version.rb
+++ b/lib/jopenssl/version.rb
@@ -1,6 +1,6 @@
 module JOpenSSL
   VERSION = '0.15.0.dev'
-  BOUNCY_CASTLE_VERSION = '1.76'
+  BOUNCY_CASTLE_VERSION = '1.78'
 end
 
 Object.class_eval do
diff --git a/pom.xml b/pom.xml
index 6a19d19d..6440e62d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -60,7 +60,7 @@ DO NOT MODIFY - GENERATED CODE
     </snapshotRepository>
   </distributionManagement>
   <properties>
-    <bc.versions>1.76</bc.versions>
+    <bc.versions>1.78</bc.versions>
     <invoker.skip>${maven.test.skip}</invoker.skip>
     <invoker.test>${bc.versions}</invoker.test>
     <jruby.plugins.version>2.0.1</jruby.plugins.version>
@@ -77,22 +77,22 @@ DO NOT MODIFY - GENERATED CODE
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcprov-jdk18on</artifactId>
-      <version>1.76</version>
+      <version>1.78</version>
     </dependency>
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcpkix-jdk18on</artifactId>
-      <version>1.76</version>
+      <version>1.78</version>
     </dependency>
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bctls-jdk18on</artifactId>
-      <version>1.76</version>
+      <version>1.78</version>
     </dependency>
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcutil-jdk18on</artifactId>
-      <version>1.76</version>
+      <version>1.78</version>
     </dependency>
     <dependency>
       <groupId>org.jruby</groupId>