diff --git a/GitVersion.yml b/GitVersion.yml
index 7989fe4..e8438d3 100644
--- a/GitVersion.yml
+++ b/GitVersion.yml
@@ -2,5 +2,6 @@ mode: ContinuousDeployment
 branches:
   master:
     mode: ContinuousDelivery
+    regex: ^master$
 ignore:
   sha: []
diff --git a/appveyor.yml b/appveyor.yml
index 1026791..5f676b4 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,7 +2,7 @@ image: Visual Studio 2019
 
 
 install:
-  - choco install gitversion.portable -pre -y
+  - choco install gitversion.portable -y --version 5.12.0
 
 before_build:
   - nuget restore