diff --git a/src/components/connect.js b/src/components/connect.js
index 3b60ebbce..379cd1fae 100644
--- a/src/components/connect.js
+++ b/src/components/connect.js
@@ -321,7 +321,7 @@ export default function connect(mapStateToProps, mapDispatchToProps, mergeProps,
           haveMergedPropsChanged = false
         }
 
-        if (!haveMergedPropsChanged && renderedElement) {
+        if (pure && !haveMergedPropsChanged && renderedElement) {
           return renderedElement
         }
 
diff --git a/test/components/connect.spec.js b/test/components/connect.spec.js
index 514eea018..534ffedee 100644
--- a/test/components/connect.spec.js
+++ b/test/components/connect.spec.js
@@ -1868,5 +1868,28 @@ describe('React', () => {
 
       ReactDOM.unmountComponentAtNode(div)
     })
+
+    it('should update impure components whenever the state of the store changes', () => {
+      const store = createStore(() => ({}))
+      let renderCount = 0
+
+      @connect(() => ({}), null, null, { pure: false })
+      class ImpureComponent extends React.Component {
+        render() {
+          ++renderCount
+          return <div />
+        }
+      }
+
+      TestUtils.renderIntoDocument(
+        <ProviderMock store={store}>
+          <ImpureComponent />
+        </ProviderMock>
+      )
+
+      const rendersBeforeStateChange = renderCount
+      store.dispatch({ type: 'ACTION' })
+      expect(renderCount).toBe(rendersBeforeStateChange + 1)
+    })
   })
 })