diff --git a/package-lock.json b/package-lock.json
index d5d3f2b7..8f195791 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "eslint-plugin-import": "2.25.4",
         "eslint-plugin-node": "11.1.0",
         "eslint-plugin-promise": "6.0.0",
-        "graphql": "15.8.0",
+        "graphql": "16.3.0",
         "jest": "27.4.7",
         "mkdirp": "1.0.4",
         "np": "7.6.0",
@@ -5522,12 +5522,12 @@
       "dev": true
     },
     "node_modules/graphql": {
-      "version": "15.8.0",
-      "resolved": "https://registry.npmjs.org/graphql/-/graphql-15.8.0.tgz",
-      "integrity": "sha512-5gghUc24tP9HRznNpV2+FIoq3xKkj5dTQqf4v0CpdPbFVwFkWoxOM+o+2OC9ZSvjEMTjfmG9QT+gcvggTwW1zw==",
+      "version": "16.3.0",
+      "resolved": "https://registry.npmjs.org/graphql/-/graphql-16.3.0.tgz",
+      "integrity": "sha512-xm+ANmA16BzCT5pLjuXySbQVFwH3oJctUVdy81w1sV0vBU0KgDdBGtxQOUd5zqOBk/JayAFeG8Dlmeq74rjm/A==",
       "dev": true,
       "engines": {
-        "node": ">= 10.x"
+        "node": "^12.22.0 || ^14.16.0 || >=16.0.0"
       }
     },
     "node_modules/har-schema": {
@@ -18407,9 +18407,9 @@
       "dev": true
     },
     "graphql": {
-      "version": "15.8.0",
-      "resolved": "https://registry.npmjs.org/graphql/-/graphql-15.8.0.tgz",
-      "integrity": "sha512-5gghUc24tP9HRznNpV2+FIoq3xKkj5dTQqf4v0CpdPbFVwFkWoxOM+o+2OC9ZSvjEMTjfmG9QT+gcvggTwW1zw==",
+      "version": "16.3.0",
+      "resolved": "https://registry.npmjs.org/graphql/-/graphql-16.3.0.tgz",
+      "integrity": "sha512-xm+ANmA16BzCT5pLjuXySbQVFwH3oJctUVdy81w1sV0vBU0KgDdBGtxQOUd5zqOBk/JayAFeG8Dlmeq74rjm/A==",
       "dev": true
     },
     "har-schema": {
diff --git a/package.json b/package.json
index 14b534be..a14af154 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "eslint-plugin-import": "2.25.4",
     "eslint-plugin-node": "11.1.0",
     "eslint-plugin-promise": "6.0.0",
-    "graphql": "15.8.0",
+    "graphql": "16.3.0",
     "jest": "27.4.7",
     "mkdirp": "1.0.4",
     "np": "7.6.0",
diff --git a/src/RelationMapper.ts b/src/RelationMapper.ts
index c794f814..65859fb5 100644
--- a/src/RelationMapper.ts
+++ b/src/RelationMapper.ts
@@ -165,6 +165,7 @@ export class RelationMapper {
       case 'FragmentSpread':
         return selectionNode.name.value;
       case 'InlineFragment':
+      default:
         return null;
     }
   }