diff --git a/src/GuardClauses/GuardClauses.csproj b/src/GuardClauses/GuardClauses.csproj
index a07b569e..470172a4 100644
--- a/src/GuardClauses/GuardClauses.csproj
+++ b/src/GuardClauses/GuardClauses.csproj
@@ -19,7 +19,7 @@
Improve support for custom error messages.
Ensure InvalidFormat doesn't succeed given an empty string and a RegEx requiring at least one character. #161
- 3.3.0
+ 4.0.0
Ardalis.GuardClauses
icon.png
true