diff --git a/scripts/language_stats.py b/scripts/language_stats.py
index 203a8b7..133a44d 100644
--- a/scripts/language_stats.py
+++ b/scripts/language_stats.py
@@ -142,12 +142,26 @@ def aggregate_language_bytes(session: requests.Session, repos: list[dict]) -> di
     totals: dict[str, int] = defaultdict(int)
 
     for repo in repos:
-        langs = session.get(
+        resp = session.get(
             f"{BASE_URL}/api/v1/repos/{USERNAME}/{repo['name']}/languages",
             timeout=30,
-        ).json()
+        )
+        if not resp.ok:
+            # Skip repos we can't access (e.g., token scope limitations)
+            print(f"Warning: Could not fetch languages for {repo['name']}: {resp.status_code}", file=sys.stderr)
+            continue
+        langs = resp.json()
+        # Skip error responses (e.g., {"message": "..."})
+        if not isinstance(langs, dict) or "message" in langs:
+            print(f"Warning: Unexpected response for {repo['name']}: {langs}", file=sys.stderr)
+            continue
         for lang, bytes_ in langs.items():
-            totals[lang] += int(bytes_)
+            # Handle bytes as either int or string
+            if isinstance(bytes_, int):
+                totals[lang] += bytes_
+            elif isinstance(bytes_, str) and bytes_.isdigit():
+                totals[lang] += int(bytes_)
+            # Skip non-numeric values
 
     return dict(totals)