diff --git a/pom.xml b/pom.xml
index ef7678bdb..56487a189 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,7 +86,7 @@
     <pitmp-maven-plugin.version>1.3.7</pitmp-maven-plugin.version>
 
     <!-- dependencies -->
-    <bouncycastle.version>1.84</bouncycastle.version>
+    <bouncycastle.version>1.85</bouncycastle.version>
     <brotli4j.version>1.23.0</brotli4j.version>
     <commons-io.version>2.22.0</commons-io.version>
     <dom4j.version>2.2.0</dom4j.version>