diff --git a/setup.cfg b/setup.cfg
index 3e3ebc7..9e87290 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -94,7 +94,7 @@ addopts = --doctest-modules
 [pycalver]
 current_version = "v202007.1036"
 version_pattern = "vYYYY0M.BUILD[-RELEASE[NUM]]"
-commit_message = "bump version to {new_version}"
+commit_message = "bump {old_version} -> {new_version}"
 commit = True
 tag = True
 push = True