diff --git a/Dockerfile b/Dockerfile
index 5679b28..d980d05 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM debian:buster
 LABEL Description="Ucentral client (Build) environment"
 
 ARG HOME /root
-ARG SCHEMA="3.2.7"
+ARG SCHEMA="4.0.0-rc1"
 ARG SCHEMA_VERSION="v${SCHEMA}"
 ARG SCHEMA_ZIP_FILE="${SCHEMA_VERSION}.zip"
 ARG SCHEMA_UNZIPPED="ols-ucentral-schema-${SCHEMA}"
diff --git a/version.json b/version.json
index 308f0c7..3dc04a2 100644
--- a/version.json
+++ b/version.json
@@ -1,5 +1,5 @@
 {
-	"major": 3,
-	"minor": 2,
-	"patch": 7
+	"major": 4,
+	"minor": 0,
+	"patch": 0 
 }