diff --git a/package-lock.json b/package-lock.json
index 697b3aaa..fc1ace94 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,7 @@
         "fp-ts": "^2.16.5",
         "gtfs-realtime-bindings": "^1.1.1",
         "jszip": "^3.10.1",
-        "langium": "^3.0.0",
+        "langium": "^3.1.2",
         "mime-types": "^2.1.35",
         "monaco-editor": "^0.34.1",
         "monaco-languageclient": "^4.0.3",
@@ -80,7 +80,7 @@
         "eslint-plugin-unicorn": "^52.0.0",
         "eslint-plugin-vitest": "^0.5.4",
         "jest-environment-jsdom": "^29.7.0",
-        "langium-cli": "^3.0.0",
+        "langium-cli": "^3.1.0",
         "memfs": "^4.9.3",
         "nock": "13.3.1",
         "nx": "19.5.4",
@@ -19669,9 +19669,9 @@
       }
     },
     "node_modules/langium": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/langium/-/langium-3.0.0.tgz",
-      "integrity": "sha512-+Ez9EoiByeoTu/2BXmEaZ06iPNXM6thWJp02KfBO/raSMyCJ4jw7AkWWa+zBCTm0+Tw1Fj9FOxdqSskyN5nAwg==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/langium/-/langium-3.1.2.tgz",
+      "integrity": "sha512-f6HS/K6ZxfEpzc34HpKiAQjhBRGTRjvhy7pJ6pGbun3h6bOy/+lrO9qnIVANowxt4MSoLSZ+ySOJ+1OhIPwkow==",
       "dependencies": {
         "chevrotain": "~11.0.3",
         "chevrotain-allstar": "~0.3.0",
@@ -19684,17 +19684,17 @@
       }
     },
     "node_modules/langium-cli": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/langium-cli/-/langium-cli-3.0.3.tgz",
-      "integrity": "sha512-g6PdhEq5IiYWK/oiySILglPvFdK6ofQdzC+U7PJmFH++bDKu0DGdxjWzDauUN5WUDyVQETWKgtYDmmbcxPzN0w==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/langium-cli/-/langium-cli-3.1.0.tgz",
+      "integrity": "sha512-bgqCtsSr4buhtL29Eh1Q+Y0yOKsXub6pzBc49VxaeBg2bI+QYNZjHYu5ynu4XGGEy6kkJJB46ecxukCme9Xr4A==",
       "dev": true,
       "dependencies": {
         "chalk": "~5.3.0",
         "commander": "~11.0.0",
         "fs-extra": "~11.1.1",
         "jsonschema": "~1.4.1",
-        "langium": "~3.0.0",
-        "langium-railroad": "~3.0.0",
+        "langium": "~3.1.0",
+        "langium-railroad": "~3.1.0",
         "lodash": "~4.17.21"
       },
       "bin": {
@@ -19740,12 +19740,12 @@
       }
     },
     "node_modules/langium-railroad": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/langium-railroad/-/langium-railroad-3.0.0.tgz",
-      "integrity": "sha512-GQOnQBGl5gJqzgK/4bKvJO5QhJGNnprpYH6Fghbl4FviVLHwP6yzyqiouDelLSoCadChCr2JqKaBp5HXv7CgWw==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/langium-railroad/-/langium-railroad-3.1.0.tgz",
+      "integrity": "sha512-+/SJwIPAOBQCm0hoepUcckhrb6S/TnuAPy7c03pznVgUXH6OlbXy9FC62L2C2GclWRQlnXJVb7tCi0tmuagK+w==",
       "dev": true,
       "dependencies": {
-        "langium": "~3.0.0",
+        "langium": "~3.1.0",
         "railroad-diagrams": "~1.0.0"
       }
     },
@@ -43417,9 +43417,9 @@
       }
     },
     "langium": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/langium/-/langium-3.0.0.tgz",
-      "integrity": "sha512-+Ez9EoiByeoTu/2BXmEaZ06iPNXM6thWJp02KfBO/raSMyCJ4jw7AkWWa+zBCTm0+Tw1Fj9FOxdqSskyN5nAwg==",
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/langium/-/langium-3.1.2.tgz",
+      "integrity": "sha512-f6HS/K6ZxfEpzc34HpKiAQjhBRGTRjvhy7pJ6pGbun3h6bOy/+lrO9qnIVANowxt4MSoLSZ+ySOJ+1OhIPwkow==",
       "requires": {
         "chevrotain": "~11.0.3",
         "chevrotain-allstar": "~0.3.0",
@@ -43429,17 +43429,17 @@
       }
     },
     "langium-cli": {
-      "version": "3.0.3",
-      "resolved": "https://registry.npmjs.org/langium-cli/-/langium-cli-3.0.3.tgz",
-      "integrity": "sha512-g6PdhEq5IiYWK/oiySILglPvFdK6ofQdzC+U7PJmFH++bDKu0DGdxjWzDauUN5WUDyVQETWKgtYDmmbcxPzN0w==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/langium-cli/-/langium-cli-3.1.0.tgz",
+      "integrity": "sha512-bgqCtsSr4buhtL29Eh1Q+Y0yOKsXub6pzBc49VxaeBg2bI+QYNZjHYu5ynu4XGGEy6kkJJB46ecxukCme9Xr4A==",
       "dev": true,
       "requires": {
         "chalk": "~5.3.0",
         "commander": "~11.0.0",
         "fs-extra": "~11.1.1",
         "jsonschema": "~1.4.1",
-        "langium": "~3.0.0",
-        "langium-railroad": "~3.0.0",
+        "langium": "~3.1.0",
+        "langium-railroad": "~3.1.0",
         "lodash": "~4.17.21"
       },
       "dependencies": {
@@ -43469,12 +43469,12 @@
       }
     },
     "langium-railroad": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/langium-railroad/-/langium-railroad-3.0.0.tgz",
-      "integrity": "sha512-GQOnQBGl5gJqzgK/4bKvJO5QhJGNnprpYH6Fghbl4FviVLHwP6yzyqiouDelLSoCadChCr2JqKaBp5HXv7CgWw==",
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/langium-railroad/-/langium-railroad-3.1.0.tgz",
+      "integrity": "sha512-+/SJwIPAOBQCm0hoepUcckhrb6S/TnuAPy7c03pznVgUXH6OlbXy9FC62L2C2GclWRQlnXJVb7tCi0tmuagK+w==",
       "dev": true,
       "requires": {
-        "langium": "~3.0.0",
+        "langium": "~3.1.0",
         "railroad-diagrams": "~1.0.0"
       }
     },
diff --git a/package.json b/package.json
index aac7ad1f..bdbee8d4 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "fp-ts": "^2.16.5",
     "gtfs-realtime-bindings": "^1.1.1",
     "jszip": "^3.10.1",
-    "langium": "^3.0.0",
+    "langium": "^3.1.2",
     "mime-types": "^2.1.35",
     "monaco-editor": "^0.34.1",
     "monaco-languageclient": "^4.0.3",
@@ -89,7 +89,7 @@
     "eslint-plugin-unicorn": "^52.0.0",
     "eslint-plugin-vitest": "^0.5.4",
     "jest-environment-jsdom": "^29.7.0",
-    "langium-cli": "^3.0.0",
+    "langium-cli": "^3.1.0",
     "memfs": "^4.9.3",
     "nock": "13.3.1",
     "nx": "19.5.4",