diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 13c8491..01ce2d8 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -26,7 +26,7 @@ jobs:
           key: ruff-${{ runner.os }}-${{ hashFiles('**/pyproject.toml', '**/ruff.toml') }}
 
       - name: Install Ruff
-        run: pip install "ruff==0.6.9"
+        run: pip install "ruff==0.13.3"
 
       # Lint (with GitHub annotation format for inline PR messages)
       - name: Ruff check
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0dd031f..fef2f29 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,6 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.6.9  # pin the latest you’re comfortable with
+    rev: v0.13.3  # pin the latest you’re comfortable with
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]  # fail if it had to change files
diff --git a/meshview/web.py b/meshview/web.py
index bf704af..e0e2ab2 100644
--- a/meshview/web.py
+++ b/meshview/web.py
@@ -1335,7 +1335,7 @@ async def nodegraph(request):
 
                 edge_pair = (node.node_id, packet.from_node_id)
                 edges_map[edge_pair]["weight"] += 1
-                edges_map[edge_pair]["type"] = ("neighbor")
+                edges_map[edge_pair]["type"] = "neighbor"
         except Exception as e:
             logger.error(f"Error decoding NeighborInfo packet: {e}")
 
@@ -1691,6 +1691,7 @@ async def api_edges(request):
                     f"Error decoding NeighborInfo packet {getattr(packet, 'id', '?')}: {e}"
                 )
 
+
 @routes.get("/api/lang")
 async def api_lang(request):
     # Language from ?lang=xx, fallback to config, then to "en"
@@ -1702,7 +1703,7 @@ async def api_lang(request):
         lang_file = os.path.join(LANG_DIR, "en.json")
 
     # Load JSON translations
-    with open(lang_file, "r", encoding="utf-8") as f:
+    with open(lang_file, encoding="utf-8") as f:
         translations = json.load(f)
 
     if section:
@@ -1711,8 +1712,7 @@ async def api_lang(request):
             return web.json_response(translations[section])
         else:
             return web.json_response(
-                {"error": f"Section '{section}' not found in {lang_code}"},
-                status=404
+                {"error": f"Section '{section}' not found in {lang_code}"}, status=404
             )
 
     # if no section requested → return full translation file