diff --git a/parent/pom.xml b/parent/pom.xml
index 048babc..7b34116 100644
--- a/parent/pom.xml
+++ b/parent/pom.xml
@@ -32,7 +32,7 @@
     <url>https://ws.apache.org/wss4j/</url>
 
     <properties>
-        <bcprov.version>1.65</bcprov.version>
+        <bcprov.version>1.66</bcprov.version>
         <commons.compress.version>1.20</commons.compress.version>
         <cryptacular.version>1.2.4</cryptacular.version>
         <ehcache.version>3.8.1</ehcache.version>