diff --git a/pom.xml b/pom.xml
index 3ff80c88c..3c9ba3af3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,7 +68,7 @@
     <apache.directory.api.version>2.1.2</apache.directory.api.version>
 
     <!-- https://mvnrepository.com/artifact/org.bouncycastle/bcprov-jdk18on -->
-    <bouncy.castle.version>1.72</bouncy.castle.version>
+    <bouncy.castle.version>1.73</bouncy.castle.version>
 
     <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-text -->
     <commons.text.version>1.10.0</commons.text.version>