diff --git a/package-lock.json b/package-lock.json
index 8422c26..859e47e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,16 +1,16 @@
 {
   "name": "@digicatapult/apollo-type-validation-plugin",
-  "version": "1.1.19",
+  "version": "1.1.20",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@digicatapult/apollo-type-validation-plugin",
-      "version": "1.1.19",
+      "version": "1.1.20",
       "license": "Apache-2.0",
       "devDependencies": {
         "@babel/eslint-parser": "^7.23.3",
-        "@graphql-tools/schema": "^10.0.0",
+        "@graphql-tools/schema": "^10.0.2",
         "c8": "^8.0.1",
         "chai": "^4.3.10",
         "cors": "^2.8.5",
@@ -741,13 +741,13 @@
       }
     },
     "node_modules/@graphql-tools/schema": {
-      "version": "10.0.0",
-      "resolved": "https://registry.npmjs.org/@graphql-tools/schema/-/schema-10.0.0.tgz",
-      "integrity": "sha512-kf3qOXMFcMs2f/S8Y3A8fm/2w+GaHAkfr3Gnhh2LOug/JgpY/ywgFVxO3jOeSpSEdoYcDKLcXVjMigNbY4AdQg==",
+      "version": "10.0.2",
+      "resolved": "https://registry.npmjs.org/@graphql-tools/schema/-/schema-10.0.2.tgz",
+      "integrity": "sha512-TbPsIZnWyDCLhgPGnDjt4hosiNU2mF/rNtSk5BVaXWnZqvKJ6gzJV4fcHcvhRIwtscDMW2/YTnK6dLVnk8pc4w==",
       "dev": true,
       "dependencies": {
-        "@graphql-tools/merge": "^9.0.0",
-        "@graphql-tools/utils": "^10.0.0",
+        "@graphql-tools/merge": "^9.0.1",
+        "@graphql-tools/utils": "^10.0.10",
         "tslib": "^2.4.0",
         "value-or-promise": "^1.0.12"
       },
@@ -759,12 +759,12 @@
       }
     },
     "node_modules/@graphql-tools/schema/node_modules/@graphql-tools/merge": {
-      "version": "9.0.0",
-      "resolved": "https://registry.npmjs.org/@graphql-tools/merge/-/merge-9.0.0.tgz",
-      "integrity": "sha512-J7/xqjkGTTwOJmaJQJ2C+VDBDOWJL3lKrHJN4yMaRLAJH3PosB7GiPRaSDZdErs0+F77sH2MKs2haMMkywzx7Q==",
+      "version": "9.0.1",
+      "resolved": "https://registry.npmjs.org/@graphql-tools/merge/-/merge-9.0.1.tgz",
+      "integrity": "sha512-hIEExWO9fjA6vzsVjJ3s0cCQ+Q/BEeMVJZtMXd7nbaVefVy0YDyYlEkeoYYNV3NVVvu1G9lr6DM1Qd0DGo9Caw==",
       "dev": true,
       "dependencies": {
-        "@graphql-tools/utils": "^10.0.0",
+        "@graphql-tools/utils": "^10.0.10",
         "tslib": "^2.4.0"
       },
       "engines": {
@@ -775,12 +775,14 @@
       }
     },
     "node_modules/@graphql-tools/schema/node_modules/@graphql-tools/utils": {
-      "version": "10.0.0",
-      "resolved": "https://registry.npmjs.org/@graphql-tools/utils/-/utils-10.0.0.tgz",
-      "integrity": "sha512-ndBPc6zgR+eGU/jHLpuojrs61kYN3Z89JyMLwK3GCRkPv4EQn9EOr1UWqF1JO0iM+/jAVHY0mvfUxyrFFN9DUQ==",
+      "version": "10.0.11",
+      "resolved": "https://registry.npmjs.org/@graphql-tools/utils/-/utils-10.0.11.tgz",
+      "integrity": "sha512-vVjXgKn6zjXIlYBd7yJxCVMYGb5j18gE3hx3Qw3mNsSEsYQXbJbPdlwb7Fc9FogsJei5AaqiQerqH4kAosp1nQ==",
       "dev": true,
       "dependencies": {
         "@graphql-typed-document-node/core": "^3.1.1",
+        "cross-inspect": "1.0.0",
+        "dset": "^3.1.2",
         "tslib": "^2.4.0"
       },
       "engines": {
@@ -1886,6 +1888,18 @@
         "node": ">=10"
       }
     },
+    "node_modules/cross-inspect": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/cross-inspect/-/cross-inspect-1.0.0.tgz",
+      "integrity": "sha512-4PFfn4b5ZN6FMNGSZlyb7wUhuN8wvj8t/VQHZdM4JsDcruGJ8L2kf9zao98QIrBPFCpdk27qst/AGTl7pL3ypQ==",
+      "dev": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      },
+      "engines": {
+        "node": ">=16.0.0"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@@ -2158,6 +2172,15 @@
         "node": ">=6.0.0"
       }
     },
+    "node_modules/dset": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/dset/-/dset-3.1.3.tgz",
+      "integrity": "sha512-20TuZZHCEZ2O71q9/+8BwKwZ0QtD9D8ObhrihJPr+vLLYlSuAU3/zL4cSlgbfeoGHTjCSJBa7NGcrF9/Bx/WJQ==",
+      "dev": true,
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -6263,34 +6286,36 @@
       }
     },
     "@graphql-tools/schema": {
-      "version": "10.0.0",
-      "resolved": "https://registry.npmjs.org/@graphql-tools/schema/-/schema-10.0.0.tgz",
-      "integrity": "sha512-kf3qOXMFcMs2f/S8Y3A8fm/2w+GaHAkfr3Gnhh2LOug/JgpY/ywgFVxO3jOeSpSEdoYcDKLcXVjMigNbY4AdQg==",
+      "version": "10.0.2",
+      "resolved": "https://registry.npmjs.org/@graphql-tools/schema/-/schema-10.0.2.tgz",
+      "integrity": "sha512-TbPsIZnWyDCLhgPGnDjt4hosiNU2mF/rNtSk5BVaXWnZqvKJ6gzJV4fcHcvhRIwtscDMW2/YTnK6dLVnk8pc4w==",
       "dev": true,
       "requires": {
-        "@graphql-tools/merge": "^9.0.0",
-        "@graphql-tools/utils": "^10.0.0",
+        "@graphql-tools/merge": "^9.0.1",
+        "@graphql-tools/utils": "^10.0.10",
         "tslib": "^2.4.0",
         "value-or-promise": "^1.0.12"
       },
       "dependencies": {
         "@graphql-tools/merge": {
-          "version": "9.0.0",
-          "resolved": "https://registry.npmjs.org/@graphql-tools/merge/-/merge-9.0.0.tgz",
-          "integrity": "sha512-J7/xqjkGTTwOJmaJQJ2C+VDBDOWJL3lKrHJN4yMaRLAJH3PosB7GiPRaSDZdErs0+F77sH2MKs2haMMkywzx7Q==",
+          "version": "9.0.1",
+          "resolved": "https://registry.npmjs.org/@graphql-tools/merge/-/merge-9.0.1.tgz",
+          "integrity": "sha512-hIEExWO9fjA6vzsVjJ3s0cCQ+Q/BEeMVJZtMXd7nbaVefVy0YDyYlEkeoYYNV3NVVvu1G9lr6DM1Qd0DGo9Caw==",
           "dev": true,
           "requires": {
-            "@graphql-tools/utils": "^10.0.0",
+            "@graphql-tools/utils": "^10.0.10",
             "tslib": "^2.4.0"
           }
         },
         "@graphql-tools/utils": {
-          "version": "10.0.0",
-          "resolved": "https://registry.npmjs.org/@graphql-tools/utils/-/utils-10.0.0.tgz",
-          "integrity": "sha512-ndBPc6zgR+eGU/jHLpuojrs61kYN3Z89JyMLwK3GCRkPv4EQn9EOr1UWqF1JO0iM+/jAVHY0mvfUxyrFFN9DUQ==",
+          "version": "10.0.11",
+          "resolved": "https://registry.npmjs.org/@graphql-tools/utils/-/utils-10.0.11.tgz",
+          "integrity": "sha512-vVjXgKn6zjXIlYBd7yJxCVMYGb5j18gE3hx3Qw3mNsSEsYQXbJbPdlwb7Fc9FogsJei5AaqiQerqH4kAosp1nQ==",
           "dev": true,
           "requires": {
             "@graphql-typed-document-node/core": "^3.1.1",
+            "cross-inspect": "1.0.0",
+            "dset": "^3.1.2",
             "tslib": "^2.4.0"
           }
         }
@@ -7199,6 +7224,15 @@
         "yaml": "^1.10.0"
       }
     },
+    "cross-inspect": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/cross-inspect/-/cross-inspect-1.0.0.tgz",
+      "integrity": "sha512-4PFfn4b5ZN6FMNGSZlyb7wUhuN8wvj8t/VQHZdM4JsDcruGJ8L2kf9zao98QIrBPFCpdk27qst/AGTl7pL3ypQ==",
+      "dev": true,
+      "requires": {
+        "tslib": "^2.4.0"
+      }
+    },
     "cross-spawn": {
       "version": "7.0.3",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@@ -7401,6 +7435,12 @@
         "esutils": "^2.0.2"
       }
     },
+    "dset": {
+      "version": "3.1.3",
+      "resolved": "https://registry.npmjs.org/dset/-/dset-3.1.3.tgz",
+      "integrity": "sha512-20TuZZHCEZ2O71q9/+8BwKwZ0QtD9D8ObhrihJPr+vLLYlSuAU3/zL4cSlgbfeoGHTjCSJBa7NGcrF9/Bx/WJQ==",
+      "dev": true
+    },
     "ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
diff --git a/package.json b/package.json
index 57864df..93f9c9b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@digicatapult/apollo-type-validation-plugin",
-  "version": "1.1.19",
+  "version": "1.1.20",
   "description": "Type validation plugin for Apollo GraphQL server",
   "main": "src/index.js",
   "repository": {
@@ -31,7 +31,7 @@
   },
   "devDependencies": {
     "@babel/eslint-parser": "^7.23.3",
-    "@graphql-tools/schema": "^10.0.0",
+    "@graphql-tools/schema": "^10.0.2",
     "c8": "^8.0.1",
     "chai": "^4.3.10",
     "cors": "^2.8.5",