diff --git a/authcode-client-credentials/build.gradle b/authcode-client-credentials/build.gradle
index 599dec4..7860531 100644
--- a/authcode-client-credentials/build.gradle
+++ b/authcode-client-credentials/build.gradle
@@ -10,7 +10,7 @@ sourceCompatibility = '1.8'
 
 ext {
 	springVersion = '2.3.4.RELEASE'
-	springSecurityVersion = '5.3.4.RELEASE'
+	springSecurityVersion = '5.4.7'
 	cfEnvSsoVersion = '2.2.2.RELEASE'
 	cfCertificateTrusterVersion = '1.0.1.RELEASE'
 	useCfCertificateTruster = false // set this property to true when cert trusting is required