diff --git a/gradle.properties b/gradle.properties
index 860a2a62..5fa584a7 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ org.gradle.jvmargs=-Xmx3g -XX:+HeapDumpOnOutOfMemoryError
 org.gradle.parallel=true
 org.gradle.caching=true
 springFrameworkVersion=6.2.0-RC1
-springSecurityVersion=6.4.0-M2
+springSecurityVersion=6.4.0-M4
 springJavaformatVersion=0.0.41
 checkstyleToolVersion=8.34
 nohttpCheckstyleVersion=0.0.11