diff --git a/package-lock.json b/package-lock.json
index 8e1729c..94b2205 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,7 +26,7 @@
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "d3": "^7.9.0",
-        "delaunator": "^5.0.1",
+        "delaunator": "^5.1.0",
         "drizzle-orm": "^0.45.4",
         "kdbush": "^4.1.0",
         "lucide-react": "^0.537.0",
@@ -49,7 +49,7 @@
         "@biomejs/biome": "2.5.15",
         "@electric-sql/pglite": "^0.5.11",
         "@tailwindcss/postcss": "^4.0.15",
-        "@types/delaunator": "^5.0.0",
+        "@types/delaunator": "^5.1.0",
         "@types/mapbox__polyline": "^1.0.5",
         "@types/node": "^26.6.4",
         "@types/rbush": "^4.0.0",
@@ -4655,11 +4655,15 @@
       "license": "MIT"
     },
     "node_modules/@types/delaunator": {
-      "version": "5.0.3",
-      "resolved": "https://registry.npmjs.org/@types/delaunator/-/delaunator-5.0.3.tgz",
-      "integrity": "sha512-6tTLP8NX0OwtB/fmW9bXp4EWPptawTSsrSGjboWRuzqkxNEEJGyzRPHbr8wnV2DBWfAZ+EPTOvW3B/KysJrl2g==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/@types/delaunator/-/delaunator-5.1.0.tgz",
+      "integrity": "sha512-qd7SAbSMhm0zjN4IFcsbyk8mUjFmjv/4w0Fo9c0zl7RjYkmuFiUh+doRTtLpIoG6Pr20e1ZEE8rr55OpPEHLJQ==",
+      "deprecated": "This is a stub types definition. delaunator provides its own type definitions, so you do not need this installed.",
       "dev": true,
-      "license": "MIT"
+      "license": "MIT",
+      "dependencies": {
+        "delaunator": "*"
+      }
     },
     "node_modules/@types/draco3d": {
       "version": "1.4.10",
@@ -5938,9 +5942,9 @@
       }
     },
     "node_modules/delaunator": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/delaunator/-/delaunator-5.0.1.tgz",
-      "integrity": "sha512-8nvh+XBe96aCESrGOqMp/84b13H9cdKbG5P2ejQCh4d4sK9RL4371qou9drQjMhvnPmhWl5hnmqbEE0fXr9Xnw==",
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/delaunator/-/delaunator-5.1.0.tgz",
+      "integrity": "sha512-AGrQ4QSgssa1NGmWmLPqN5NY2KajF5MqxetNEO+o0n3ZwZZeTmt7bBnvzHWrmkZFxGgr4HdyFgelzgi06otLuQ==",
       "license": "ISC",
       "dependencies": {
         "robust-predicates": "^3.0.2"
diff --git a/package.json b/package.json
index ff38e51..fed0f91 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "d3": "^7.9.0",
-    "delaunator": "^5.0.1",
+    "delaunator": "^5.1.0",
     "drizzle-orm": "^0.45.4",
     "kdbush": "^4.1.0",
     "lucide-react": "^0.537.0",
@@ -64,7 +64,7 @@
     "@biomejs/biome": "2.5.15",
     "@electric-sql/pglite": "^0.5.11",
     "@tailwindcss/postcss": "^4.0.15",
-    "@types/delaunator": "^5.0.0",
+    "@types/delaunator": "^5.1.0",
     "@types/mapbox__polyline": "^1.0.5",
     "@types/node": "^26.6.4",
     "@types/rbush": "^4.0.0",