diff --git a/news/10361.trivial.rst b/news/10361.trivial.rst
new file mode 100644
index 00000000000..05b3cb10fde
--- /dev/null
+++ b/news/10361.trivial.rst
@@ -0,0 +1 @@
+Added an explicit warning when pip is unable to parse git version.
diff --git a/src/pip/_internal/vcs/git.py b/src/pip/_internal/vcs/git.py
index 3186553e705..7a78ad12dd5 100644
--- a/src/pip/_internal/vcs/git.py
+++ b/src/pip/_internal/vcs/git.py
@@ -94,6 +94,7 @@ def get_git_version(self) -> Tuple[int, ...]:
         version = self.run_command(["version"], show_stdout=False, stdout_only=True)
         match = GIT_VERSION_REGEX.match(version)
         if not match:
+            logger.warning("Can't parse git version: %s", version)
             return ()
         return tuple(int(c) for c in match.groups())