diff --git a/git-commit-signing/README.md b/git-commit-signing/README.md
index 5ed5e26..ad063ee 100644
--- a/git-commit-signing/README.md
+++ b/git-commit-signing/README.md
@@ -9,6 +9,9 @@ tags: [helper, git]
 
 # git-commit-signing
 
+> [!IMPORTANT]  
+> This module will only work with Git version >=2.4, prior versions [do not support signing commits via SSH keys](https://lore.kernel.org/git/xmqq8rxpgwki.fsf@gitster.g/).
+
 This module downloads your SSH key from Coder and uses it to sign commits with Git.
 It requires `curl` and `jq` to be installed inside your workspace.