diff --git a/fsspec/implementations/git.py b/fsspec/implementations/git.py
index 7c34d93e0..fde671b8c 100644
--- a/fsspec/implementations/git.py
+++ b/fsspec/implementations/git.py
@@ -80,7 +80,7 @@ def ls(self, path, detail=True, ref=None, **kwargs):
                         {
                             "type": "directory",
                             "name": "/".join([path, obj.name]).lstrip("/"),
-                            "hex": obj.hex,
+                            "hex": str(obj.id),
                             "mode": f"{obj.filemode:o}",
                             "size": 0,
                         }
@@ -90,7 +90,7 @@ def ls(self, path, detail=True, ref=None, **kwargs):
                         {
                             "type": "file",
                             "name": "/".join([path, obj.name]).lstrip("/"),
-                            "hex": obj.hex,
+                            "hex": str(obj.id),
                             "mode": f"{obj.filemode:o}",
                             "size": obj.size,
                         }
@@ -101,7 +101,7 @@ def ls(self, path, detail=True, ref=None, **kwargs):
                 {
                     "type": "file",
                     "name": obj.name,
-                    "hex": obj.hex,
+                    "hex": str(obj.id),
                     "mode": f"{obj.filemode:o}",
                     "size": obj.size,
                 }