diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6bf9b4d9..e141537c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.0)
 project(SRB2
-	VERSION 2.1.21
+	VERSION 2.1.20
 	LANGUAGES C)
 
 if(${PROJECT_SOURCE_DIR} MATCHES ${PROJECT_BINARY_DIR})
diff --git a/appveyor.yml b/appveyor.yml
index 061613c4..69913cfc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: 2.1.21.{branch}-{build}
+version: 2.1.20.{branch}-{build}
 os: MinGW
 
 environment: