diff --git a/pom.xml b/pom.xml
index 093cec1..bcffa0c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -44,7 +44,7 @@
         <commons-compress.version>1.23.0</commons-compress.version>
         <google.cloud.libraries.version>26.12.0</google.cloud.libraries.version>
         <commons-io.version>2.11.0</commons-io.version>
-        <bouncycastle.version>1.72</bouncycastle.version>
+        <bouncycastle.version>1.73</bouncycastle.version>
         <mokito.version>5.3.1</mokito.version>
         <maven.compiler.target>11</maven.compiler.target>
         <maven.compiler.source>11</maven.compiler.source>