Update README.md

Author: lordbyron

README.md

@@ -4,7 +4,7 @@ Keycloak integration for Duo Security MFA. Provides an authentication execution
 
 ## Build
 
-You may need to modify the keycloak versions in the pom.xml to correspond to yours. I'm using 3.3.0.CR2.
+You may need to modify the keycloak versions in the pom.xml to correspond to yours. I'm using 3.4.3.Final.
 
 ```
 $ mvn clean test install