diff --git a/package-lock.json b/package-lock.json
index b2f2b91..3805a3d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "MIT",
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         "@cerbos/core": "^0.16.0",
-        "@cerbos/grpc": "^0.16.0",
+        "@cerbos/grpc": "^0.18.0",
         "@cerbos/http": "^0.17.0",
         "fastify": "^4.13.0",
         "fastify-plugin": "^4.5.0"
@@ -470,14 +470,25 @@
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-      "resolved": "https://registry.npmjs.org/@cerbos/grpc/-/grpc-0.16.0.tgz",
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+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/@cerbos/grpc/-/grpc-0.18.0.tgz",
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-        "@cerbos/core": "^0.16.0",
-        "@grpc/grpc-js": "^1.10.1",
+        "@cerbos/core": "^0.18.0",
+        "@grpc/grpc-js": "^1.10.7",
         "long": "^5.2.3",
-        "protobufjs": "^7.2.6"
+        "protobufjs": "^7.3.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/@cerbos/grpc/node_modules/@cerbos/core": {
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+      "resolved": "https://registry.npmjs.org/@cerbos/core/-/core-0.18.0.tgz",
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@@ -605,25 +616,25 @@
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+      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.10.8.tgz",
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-        "@grpc/proto-loader": "^0.7.8",
-        "@types/node": ">=12.12.47"
+        "@grpc/proto-loader": "^0.7.13",
+        "@js-sdsl/ordered-map": "^4.4.2"
       },
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-        "node": "^8.13.0 || >=10.10.0"
+        "node": ">=12.10.0"
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-      "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.7.10.tgz",
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+      "version": "0.7.13",
+      "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.7.13.tgz",
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-        "protobufjs": "^7.2.4",
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@@ -821,6 +832,15 @@
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       }
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+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/@js-sdsl/ordered-map/-/ordered-map-4.4.2.tgz",
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+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/js-sdsl"
+      }
+    },
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       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -917,9 +937,12 @@
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+      "dependencies": {
+        "undici-types": "~5.26.4"
+      }
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@@ -4557,9 +4580,9 @@
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+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-7.3.0.tgz",
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@@ -7544,6 +7567,11 @@
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+    "node_modules/undici-types": {
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+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
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+    },
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       "resolved": "https://registry.npmjs.org/unicode-length/-/unicode-length-2.1.0.tgz",
@@ -8148,14 +8176,24 @@
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     "@cerbos/grpc": {
-      "version": "0.16.0",
-      "resolved": "https://registry.npmjs.org/@cerbos/grpc/-/grpc-0.16.0.tgz",
-      "integrity": "sha512-BdnEK235QJNibf6EUtefIMdM8nNeUcwsk4V1nHe5nfkFgVPHtrjsMA4YV8aX45URcRImA5WkN0t3ZspCt9L4wg==",
+      "version": "0.18.0",
+      "resolved": "https://registry.npmjs.org/@cerbos/grpc/-/grpc-0.18.0.tgz",
+      "integrity": "sha512-EVYKfXMZYutSJODR1EzjQu80Z9zFAf6qv24RsS95AOVnY62dQpqatLPcCtcEK5FBYvNRciWDkq+nxEdJMG65AQ==",
       "requires": {
-        "@cerbos/core": "^0.16.0",
-        "@grpc/grpc-js": "^1.10.1",
+        "@cerbos/core": "^0.18.0",
+        "@grpc/grpc-js": "^1.10.7",
         "long": "^5.2.3",
-        "protobufjs": "^7.2.6"
+        "protobufjs": "^7.3.0"
+      },
+      "dependencies": {
+        "@cerbos/core": {
+          "version": "0.18.0",
+          "resolved": "https://registry.npmjs.org/@cerbos/core/-/core-0.18.0.tgz",
+          "integrity": "sha512-xI1JlIPvyXACqAATZfzFbssj3O+Pn52LHakJ+2ZHnpVEBFKfVX9drFQYtUkygM8n/mNcnE9icqVrhlF6XOl6Ww==",
+          "requires": {
+            "uuid": "^9.0.1"
+          }
+        }
       }
     },
     "@cerbos/http": {
@@ -8257,22 +8295,22 @@
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     "@grpc/grpc-js": {
-      "version": "1.10.1",
-      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.10.1.tgz",
-      "integrity": "sha512-55ONqFytZExfOIjF1RjXPcVmT/jJqFzbbDqxK9jmRV4nxiYWtL9hENSW1Jfx0SdZfrvoqd44YJ/GJTqfRrawSQ==",
+      "version": "1.10.8",
+      "resolved": "https://registry.npmjs.org/@grpc/grpc-js/-/grpc-js-1.10.8.tgz",
+      "integrity": "sha512-vYVqYzHicDqyKB+NQhAc54I1QWCBLCrYG6unqOIcBTHx+7x8C9lcoLj3KVJXs2VB4lUbpWY+Kk9NipcbXYWmvg==",
       "requires": {
-        "@grpc/proto-loader": "^0.7.8",
-        "@types/node": ">=12.12.47"
+        "@grpc/proto-loader": "^0.7.13",
+        "@js-sdsl/ordered-map": "^4.4.2"
       }
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     "@grpc/proto-loader": {
-      "version": "0.7.10",
-      "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.7.10.tgz",
-      "integrity": "sha512-CAqDfoaQ8ykFd9zqBDn4k6iWT9loLAlc2ETmDFS9JCD70gDcnA4L3AFEo2iV7KyAtAAHFW9ftq1Fz+Vsgq80RQ==",
+      "version": "0.7.13",
+      "resolved": "https://registry.npmjs.org/@grpc/proto-loader/-/proto-loader-0.7.13.tgz",
+      "integrity": "sha512-AiXO/bfe9bmxBjxxtYxFAXGZvMaN5s8kO+jBHAJCON8rJoB5YS/D6X7ZNc6XQkuHNmyl4CYaMI1fJ/Gn27RGGw==",
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         "lodash.camelcase": "^4.3.0",
         "long": "^5.0.0",
-        "protobufjs": "^7.2.4",
+        "protobufjs": "^7.2.5",
         "yargs": "^17.7.2"
       }
     },
@@ -8420,6 +8458,11 @@
         "@jridgewell/sourcemap-codec": "1.4.14"
       }
     },
+    "@js-sdsl/ordered-map": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/@js-sdsl/ordered-map/-/ordered-map-4.4.2.tgz",
+      "integrity": "sha512-iUKgm52T8HOE/makSxjqoWhe95ZJA1/G1sYsGev2JDKUSS14KAgg1LHb+Ba+IPow0xflbnSkOsZcO08C7w1gYw=="
+    },
     "@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -8507,9 +8550,12 @@
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-      "version": "18.11.18",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.11.18.tgz",
-      "integrity": "sha512-DHQpWGjyQKSHj3ebjFI/wRKcqQcdR+MoFBygntYOZytCqNfkd2ZC4ARDJ2DQqhjH5p85Nnd3jhUJIXrszFX/JA=="
+      "version": "20.12.12",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.12.tgz",
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+      "requires": {
+        "undici-types": "~5.26.4"
+      }
     },
     "abort-controller": {
       "version": "3.0.0",
@@ -11176,9 +11222,9 @@
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-      "version": "7.2.6",
-      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-7.2.6.tgz",
-      "integrity": "sha512-dgJaEDDL6x8ASUZ1YqWciTRrdOuYNzoOf27oHNfdyvKqHr5i0FV7FSLU+aIeFjyFgVxrpTOtQUi0BLLBymZaBw==",
+      "version": "7.3.0",
+      "resolved": "https://registry.npmjs.org/protobufjs/-/protobufjs-7.3.0.tgz",
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@@ -13166,6 +13212,11 @@
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       "dev": true
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+    "undici-types": {
+      "version": "5.26.5",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
+      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA=="
+    },
     "unicode-length": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/unicode-length/-/unicode-length-2.1.0.tgz",
diff --git a/package.json b/package.json
index 35ad1cb..598d65a 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   "license": "MIT",
   "dependencies": {
     "@cerbos/core": "^0.16.0",
-    "@cerbos/grpc": "^0.16.0",
+    "@cerbos/grpc": "^0.18.0",
     "@cerbos/http": "^0.17.0",
     "fastify": "^4.13.0",
     "fastify-plugin": "^4.5.0"