diff --git a/ContributionGuidelines.md b/ContributionGuidelines.md
index 199b39e..0a299c0 100644
--- a/ContributionGuidelines.md
+++ b/ContributionGuidelines.md
@@ -26,6 +26,8 @@ In order to maintain the quality and integrity of the **PhoenixPE** source tree,
 
 Script files use semantic versioning in the form of `MAJOR.MINOR.PATCH.BUILD` eg. `1.0.2.0`.
 
+The Date of the version change should be specified in the format: `YYYY-MM-DD`. 
+
 |Version|Description|
 |---|---|
 |MAJOR|Major change in feature, function, or API usage. Minor version and Patch version MUST be reset to 0 when Major version is incremented.|