diff --git a/callout/pom.xml b/callout/pom.xml
index d72886f..928a22a 100644
--- a/callout/pom.xml
+++ b/callout/pom.xml
@@ -15,7 +15,7 @@
     <java.version>1.8</java.version>
     <santuario.version>[2.1.4,)</santuario.version>
     <testng.version>6.8.7</testng.version>
-    <bouncycastle.version>1.67</bouncycastle.version>
+    <bouncycastle.version>1.70</bouncycastle.version>
     <apiproxy.java.rsrc.dir>../bundle/apiproxy/resources/java</apiproxy.java.rsrc.dir>
   </properties>