diff --git a/lib/rules/no-deprecated.js b/lib/rules/no-deprecated.js
index 6072290f73..c5dee54f5a 100644
--- a/lib/rules/no-deprecated.js
+++ b/lib/rules/no-deprecated.js
@@ -101,6 +101,7 @@ module.exports = {
       return (
         deprecated &&
         deprecated[method] &&
+        deprecated[method][0] &&
         versionUtil.testReactVersion(context, deprecated[method][0])
       );
     }
diff --git a/lib/util/version.js b/lib/util/version.js
index cbdec7d919..252d4f592d 100644
--- a/lib/util/version.js
+++ b/lib/util/version.js
@@ -27,7 +27,7 @@ function getFlowVersionFromContext(context) {
 }
 
 function test(context, methodVer, confVer) {
-  methodVer = methodVer.split('.').map(part => Number(part));
+  methodVer = String(methodVer || '').split('.').map(part => Number(part));
   const higherMajor = methodVer[0] < confVer[0];
   const higherMinor = methodVer[0] === confVer[0] && methodVer[1] < confVer[1];
   const higherOrEqualPatch = methodVer[0] === confVer[0] && methodVer[1] === confVer[1] && methodVer[2] <= confVer[2];
diff --git a/tests/lib/rules/no-deprecated.js b/tests/lib/rules/no-deprecated.js
index b1b5630c33..a1165563d4 100644
--- a/tests/lib/rules/no-deprecated.js
+++ b/tests/lib/rules/no-deprecated.js
@@ -75,6 +75,7 @@ ruleTester.run('no-deprecated', rule, {
     {
       code: `
         class Foo {
+          constructor() {}
           componentWillMount() {}
           componentWillReceiveProps() {}
           componentWillUpdate() {}
@@ -379,6 +380,35 @@ ruleTester.run('no-deprecated', rule, {
           )
         }
       ]
+    },
+    {
+      code: `
+        class Foo extends React.Component {
+          constructor() {}
+          componentWillMount() {}
+          componentWillReceiveProps() {}
+          componentWillUpdate() {}
+        }
+      `,
+      errors: [
+        {
+          message: errorMessage(
+            'componentWillMount', '16.3.0', 'UNSAFE_componentWillMount',
+            'https://reactjs.org/docs/react-component.html#unsafe_componentwillmount'
+          )
+        },
+        {
+          message: errorMessage(
+            'componentWillReceiveProps', '16.3.0', 'UNSAFE_componentWillReceiveProps',
+            'https://reactjs.org/docs/react-component.html#unsafe_componentwillreceiveprops'
+          )
+        },
+        {
+          message: errorMessage('componentWillUpdate', '16.3.0', 'UNSAFE_componentWillUpdate',
+            'https://reactjs.org/docs/react-component.html#unsafe_componentwillupdate'
+          )
+        }
+      ]
     }
   ]
 });