diff --git a/.circleci/config.yml b/.circleci/config.yml
index 18f4d47..0ad483e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -44,7 +44,7 @@ workflows:
           version: '14'
       - publish:
           <<: *only_master
-          version: '12'
+          version: '14'
           context: common-env-vars
           requires:
             - node-10
diff --git a/src/__tests__/valid-federated-with-multiple-primary-keys.graphql b/src/__tests__/valid-federated-with-multiple-primary-keys.graphql
new file mode 100644
index 0000000..4beacc5
--- /dev/null
+++ b/src/__tests__/valid-federated-with-multiple-primary-keys.graphql
@@ -0,0 +1,16 @@
+type Sale @key(fields: "id") {
+  id: ID!
+  name: String
+  seller: User
+}
+
+extend type User @key(fields: "id") @key(fields: "netsuiteInternalId") {
+  id: ID! @external
+  netsuiteInternalId: Int
+  sales: [Sale]
+  numberOfSales: Int
+}
+
+extend type Query {
+  sales: [Sale]
+}
diff --git a/src/__tests__/validateSchema.test.ts b/src/__tests__/validateSchema.test.ts
index 788cdde..3b65692 100644
--- a/src/__tests__/validateSchema.test.ts
+++ b/src/__tests__/validateSchema.test.ts
@@ -12,6 +12,11 @@ function expectError(filename: string, isFederated: boolean) {
   throw new Error('Expected validateSchema to throw');
 }
 
+function expectSuccess(filename: string, isFederated: boolean) {
+  validateSchema(filename, isFederated);
+  return expect(true);
+}
+
 test('non-existant.graphql', () => {
   expectError(__dirname + '/non-existant.graphql', false).toMatchInlineSnapshot(
     `"Could not find the schema at src/__tests__/non-existant.graphql"`,
@@ -92,3 +97,7 @@ test('invalid-federated-schema-2.graphql', () => {
     "
   `);
 });
+
+test('valid-federated-with-multiple-primary-keys.graphql', () => {
+  expectSuccess(__dirname + '/valid-federated-with-multiple-primary-keys.graphql', true).toBeTruthy();
+});
diff --git a/src/validateSchema.ts b/src/validateSchema.ts
index d96720b..7d5c0d2 100644
--- a/src/validateSchema.ts
+++ b/src/validateSchema.ts
@@ -3,6 +3,8 @@ import {relative} from 'path';
 import {GraphQLError} from 'graphql/error';
 import {parse, DocumentNode} from 'graphql/language';
 import {validateSDL} from 'graphql/validation/validate';
+import {specifiedSDLRules} from 'graphql/validation/specifiedRules';
+import {UniqueDirectivesPerLocationRule} from 'graphql';
 import {codeFrameColumns} from '@babel/code-frame';
 import ExpectedError from './ExpectedError';
 import chalk from 'chalk';
@@ -13,6 +15,9 @@ directive @requires(fields: _FieldSet!) on FIELD_DEFINITION
 directive @provides(fields: _FieldSet!) on FIELD_DEFINITION
 directive @key(fields: _FieldSet!) on OBJECT | INTERFACE
 `;
+
+const OMITTED_VALIDATION_RULES = [UniqueDirectivesPerLocationRule.name];
+
 export default function validateSchema(filename: string, isFederated: boolean): {source: string} {
   let schemaString: string;
   try {
@@ -87,7 +92,8 @@ export default function validateSchema(filename: string, isFederated: boolean):
     });
   }
 
-  const errors = validateSDL(parsedSchema);
+  const rules = specifiedSDLRules.filter((rule) => !OMITTED_VALIDATION_RULES.includes(rule.name));
+  const errors = validateSDL(parsedSchema, undefined, rules);
   if (errors.length) {
     throw new ExpectedError(
       `${chalk.red(`GraphQL schema ${errors.length > 1 ? 'errors' : 'error'} in`)} ${chalk.cyan(