diff --git a/docs/antora.yml b/docs/antora.yml
index d75e935f21..9c85888739 100644
--- a/docs/antora.yml
+++ b/docs/antora.yml
@@ -1,2 +1,3 @@
 name: ROOT
-version: '5.6.6'
+version: '5.6.7'
+prerelease: '-SNAPSHOT'
diff --git a/gradle.properties b/gradle.properties
index be5ebd49dd..7513cbb01b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -3,7 +3,7 @@ springJavaformatVersion=0.0.31
 springBootVersion=2.4.2
 springFrameworkVersion=5.3.21
 openSamlVersion=3.4.6
-version=5.6.6
+version=5.6.7-SNAPSHOT
 kotlinVersion=1.5.32
 samplesBranch=5.6.x
 org.gradle.jvmargs=-Xmx3g -XX:MaxPermSize=2048m -XX:+HeapDumpOnOutOfMemoryError