diff --git a/backend/package.json b/backend/package.json
index 8f1bc2de2..2457b9dee 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -48,7 +48,6 @@
     "express": "~4.16.4",
     "faker": "~4.1.0",
     "graphql": "~14.2.1",
-    "graphql-constraint-directive": "^1.3.0",
     "graphql-custom-directives": "~0.2.14",
     "graphql-iso-date": "~3.6.1",
     "graphql-middleware": "~3.0.2",
diff --git a/backend/src/middleware/index.js b/backend/src/middleware/index.js
index 8f86a88e6..3073264ba 100644
--- a/backend/src/middleware/index.js
+++ b/backend/src/middleware/index.js
@@ -10,6 +10,7 @@ import permissionsMiddleware from './permissionsMiddleware'
 import userMiddleware from './userMiddleware'
 import includedFieldsMiddleware from './includedFieldsMiddleware'
 import orderByMiddleware from './orderByMiddleware'
+import validUrlMiddleware from './validUrlMiddleware'
 
 export default schema => {
   let middleware = [
@@ -22,7 +23,8 @@ export default schema => {
     softDeleteMiddleware,
     userMiddleware,
     includedFieldsMiddleware,
-    orderByMiddleware
+    orderByMiddleware,
+    validUrlMiddleware
   ]
 
   // add permisions middleware at the first position (unless we're seeding)
diff --git a/backend/src/middleware/validUrlMiddleware.js b/backend/src/middleware/validUrlMiddleware.js
new file mode 100644
index 000000000..f5fdae9d4
--- /dev/null
+++ b/backend/src/middleware/validUrlMiddleware.js
@@ -0,0 +1,18 @@
+const validURL = str => {
+  const isValid = str.match(/^(?:https?:\/\/)(?:[^@\n])?(?:www\.)?([^:\/\n?]+)/g)
+  return !!isValid
+}
+
+export default {
+  Mutation: {
+    CreateSocialMedia: async (resolve, root, args, context, info) => {
+      let socialMedia
+      if (validURL(args.url)) {
+        socialMedia = await resolve(root, args, context, info)
+      } else {
+        throw Error('Input is not a URL')
+      }
+      return socialMedia
+    }
+  }
+}
\ No newline at end of file
diff --git a/backend/src/resolvers/socialMedia.js b/backend/src/resolvers/socialMedia.js
index f201f4365..a24cc6802 100644
--- a/backend/src/resolvers/socialMedia.js
+++ b/backend/src/resolvers/socialMedia.js
@@ -4,12 +4,11 @@ export default {
   Mutation: {
     CreateSocialMedia: async (object, params, context, resolveInfo) => {
       const result = await neo4jgraphql(object, params, context, resolveInfo, true)
-
       const session = context.driver.session()
       await session.run(
-        'MATCH (owner:User {id: $userId}), (socialMedia:SocialMedia {id: $socialMediaId}) ' +
-        'MERGE (socialMedia)<-[:OWNED]-(owner) ' +
-        'RETURN owner', {
+        `MATCH (owner:User {id: $userId}), (socialMedia:SocialMedia {id: $socialMediaId})
+        MERGE (socialMedia)<-[:OWNED]-(owner) 
+        RETURN owner`, {
           userId: context.user.id,
           socialMediaId: result.id
         }
diff --git a/backend/src/resolvers/socialMedia.spec.js b/backend/src/resolvers/socialMedia.spec.js
new file mode 100644
index 000000000..92a08823e
--- /dev/null
+++ b/backend/src/resolvers/socialMedia.spec.js
@@ -0,0 +1,49 @@
+import Factory from '../seed/factories'
+import { GraphQLClient } from 'graphql-request'
+import { host, login } from '../jest/helpers'
+
+const factory = Factory()
+
+describe('CreateSocialMedia', () => {
+  let client
+  let headers
+  const mutation = `
+    mutation($url: String!) {
+      CreateSocialMedia(url: $url) {
+        url
+      }
+    }
+  `
+  beforeEach(async () => {
+    await factory.create('User', {
+      avatar: 'https://s3.amazonaws.com/uifaces/faces/twitter/jimmuirhead/128.jpg',
+      id: 'acb2d923-f3af-479e-9f00-61b12e864666',
+      name: 'Matilde Hermiston',
+      slug: 'matilde-hermiston',
+      role: 'user',
+      email: 'test@example.org',
+      password: '1234'
+    })
+  })
+  
+  afterEach(async () => {
+    await factory.cleanDatabase()
+  })
+
+  describe('authenticated', () => {
+    beforeEach(async () => {
+      headers = await login({ email: 'test@example.org', password: '1234' })
+      client = new GraphQLClient(host, { headers })
+    })
+
+    it('rejects empty string', async () => {
+      const variables = { url: '' }
+      await expect(client.request(mutation, variables)).rejects.toThrow('Input is not a URL')
+    })
+
+    it('validates URLs', async () => {
+      const variables = { url: 'not-a-url' }
+      await expect(client.request(mutation, variables)).rejects.toThrow('Input is not a URL')
+    })
+  })
+})
\ No newline at end of file
diff --git a/backend/src/resolvers/user_management.spec.js b/backend/src/resolvers/user_management.spec.js
index ac3856c52..c059ec78e 100644
--- a/backend/src/resolvers/user_management.spec.js
+++ b/backend/src/resolvers/user_management.spec.js
@@ -310,31 +310,3 @@ describe('change password', () => {
   })
 })
 
-describe('CreateSocialMedia', () => {
-  let client
-  let headers
-  const mutation = `
-    mutation($input: SocialMediaInput) {
-      CreateSocialMedia(input: $input) {
-        url
-      }
-    }
-  `
-
-  describe('authenticated', () => {
-    beforeEach(async () => {
-      headers = await login({ email: 'test@example.org', password: '1234' })
-      client = new GraphQLClient(host, { headers })
-    })
-
-    it('rejects empty string', async () => {
-      const variables = { input: { url: '' } }
-      await expect(client.request(mutation, variables)).rejects.toThrow('Input is not a URL')
-    })
-
-    it('validates URLs', async () => {
-      const variables = { input: { url: 'not-a-url' } }
-      await expect(client.request(mutation, variables)).rejects.toThrow('Input is not a URL')
-    })
-  })
-})
diff --git a/backend/src/schema.graphql b/backend/src/schema.graphql
index 3c229a8fd..94e28d0d7 100644
--- a/backend/src/schema.graphql
+++ b/backend/src/schema.graphql
@@ -26,7 +26,6 @@ type Mutation {
   disable(id: ID!): ID
   enable(id: ID!): ID
   reward(fromBadgeId: ID!, toUserId: ID!): ID
-  createSocialMedia(input: SocialMediaInput): SocialMedia
   unreward(fromBadgeId: ID!, toUserId: ID!): ID
   "Shout the given Type and ID"
   shout(id: ID!, type: ShoutTypeEnum): Boolean! @cypher(statement: """
@@ -327,6 +326,3 @@ type SocialMedia {
   ownedBy: [User]! @relation(name: "OWNED", direction: "IN")
 }
 
-input SocialMediaInput {
-  url: String!
-}
diff --git a/backend/src/server.js b/backend/src/server.js
index 7b5ad31e1..0dff63635 100644
--- a/backend/src/server.js
+++ b/backend/src/server.js
@@ -10,8 +10,6 @@ import applyScalars from './bootstrap/scalars'
 import { getDriver } from './bootstrap/neo4j'
 import helmet from 'helmet'
 import decode from './jwt/decode'
-// import ConstraintDirective from 'graphql-constraint-directive'
-const ConstraintDirective = require('graphql-constraint-directive')
 
 
 dotenv.config()
@@ -28,7 +26,6 @@ const debug = process.env.NODE_ENV !== 'production' && process.env.DEBUG === 'tr
 
 let schema = makeAugmentedSchema({
   typeDefs,
-  schemaDirectives: { constraint: ConstraintDirective },
   resolvers,
   config: {
     query: {
diff --git a/backend/yarn.lock b/backend/yarn.lock
index f9f530d1b..68e6cb931 100644
--- a/backend/yarn.lock
+++ b/backend/yarn.lock
@@ -1386,7 +1386,7 @@ apollo-link-http@~1.5.14:
     apollo-link-http-common "^0.2.13"
     tslib "^1.9.3"
 
-apollo-link@^1.0.0, apollo-link@^1.2.11, apollo-link@^1.2.2, apollo-link@^1.2.3, apollo-link@^1.2.4:
+apollo-link@^1.0.0, apollo-link@^1.2.11, apollo-link@^1.2.3, apollo-link@^1.2.4:
   version "1.2.11"
   resolved "https://registry.yarnpkg.com/apollo-link/-/apollo-link-1.2.11.tgz#493293b747ad3237114ccd22e9f559e5e24a194d"
   integrity sha512-PQvRCg13VduLy3X/0L79M6uOpTh5iHdxnxYuo8yL7sJlWybKRJwsv4IcRBJpMFbChOOaHY7Og9wgPo6DLKDKDA==
@@ -3660,14 +3660,6 @@ graphql-auth-directives@^2.1.0:
     graphql-tools "^4.0.4"
     jsonwebtoken "^8.3.0"
 
-graphql-constraint-directive@^1.3.0:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/graphql-constraint-directive/-/graphql-constraint-directive-1.3.0.tgz#f041cc0429155fb3f4ef6941b4add42fa4b77a3f"
-  integrity sha512-z3LTSUbwkvvpu6/ywccGfNg+7pXp+cjEzgioaK/QDsHIehKju1SM6KPBTDVPugSJbVXb8M80Jxt6mOC7t//SmA==
-  dependencies:
-    graphql-tools "^3.0.1"
-    validator "^10.2.0"
-
 graphql-custom-directives@~0.2.14:
   version "0.2.14"
   resolved "https://registry.yarnpkg.com/graphql-custom-directives/-/graphql-custom-directives-0.2.14.tgz#88611b8cb074477020ad85af47bfe168c4c23992"
@@ -3779,17 +3771,6 @@ graphql-tag@^2.9.2, graphql-tag@~2.10.1:
   resolved "https://registry.yarnpkg.com/graphql-tag/-/graphql-tag-2.10.1.tgz#10aa41f1cd8fae5373eaf11f1f67260a3cad5e02"
   integrity sha512-jApXqWBzNXQ8jYa/HLkZJaVw9jgwNqZkywa2zfFn16Iv1Zb7ELNHkJaXHR7Quvd5SIGsy6Ny7SUKATgnu05uEg==
 
-graphql-tools@^3.0.1:
-  version "3.1.1"
-  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-3.1.1.tgz#d593358f01e7c8b1671a17b70ddb034dea9dbc50"
-  integrity sha512-yHvPkweUB0+Q/GWH5wIG60bpt8CTwBklCSzQdEHmRUgAdEQKxw+9B7zB3dG7wB3Ym7M7lfrS4Ej+jtDZfA2UXg==
-  dependencies:
-    apollo-link "^1.2.2"
-    apollo-utilities "^1.0.1"
-    deprecated-decorator "^0.1.6"
-    iterall "^1.1.3"
-    uuid "^3.1.0"
-
 graphql-tools@^4.0.0, graphql-tools@^4.0.4:
   version "4.0.4"
   resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.4.tgz#ca08a63454221fdde825fe45fbd315eb2a6d566b"
@@ -7775,11 +7756,6 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
-validator@^10.2.0:
-  version "10.11.0"
-  resolved "https://registry.yarnpkg.com/validator/-/validator-10.11.0.tgz#003108ea6e9a9874d31ccc9e5006856ccd76b228"
-  integrity sha512-X/p3UZerAIsbBfN/IwahhYaBbY68EN/UQBWHtsbXGT5bfrH/p4NQzUCG1kF/rtKaNpnJ7jAu6NGTdSNtyNIXMw==
-
 vary@^1, vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"