diff --git a/appveyor.yml b/appveyor.yml
index 25b523188..ad630188b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,7 +2,7 @@ image: Previous Visual Studio 2019
 
 init:
     -   cmd: git config --global core.autocrlf true
-    -   ps: $env:elsa_build_version = 1.1.1
+    -   ps: $env:elsa_build_version = "1.1.1"
 
 environment:
     elsa_version: 2.3.0