diff --git a/pyproject.toml b/pyproject.toml
index 3a36aa6..ecce027 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -217,7 +217,7 @@ format = [
   { cmd = "black ." },
   # Configure Ruff not to auto-fix (remove!) unused variables (F841) and `print` statements (T201).
   { cmd = "ruff --fix --ignore=ERA --ignore=F401 --ignore=F841 --ignore=T20 ." },
-  { cmd = "pyproject-fmt pyproject.toml" },
+  { cmd = "pyproject-fmt --keep-full-version pyproject.toml" },
 ]
 
 lint = [