diff --git a/pom.xml b/pom.xml
index f992284..9a755ee 100644
--- a/pom.xml
+++ b/pom.xml
@@ -139,7 +139,7 @@
     <dependency>
       <groupId>org.bouncycastle</groupId>
       <artifactId>bcprov-jdk18on</artifactId>
-      <version>1.84</version>
+      <version>1.85</version>
     </dependency>
     <!-- ALTCHA server-side challenge creation + verification (v1 hashcash protocol). -->
     <dependency>