diff --git a/notNeededPackages.json b/notNeededPackages.json
index aefc366624..529c094f47 100644
--- a/notNeededPackages.json
+++ b/notNeededPackages.json
@@ -3384,6 +3384,12 @@
             "sourceRepoURL": "https://github.com/sindresorhus/redent",
             "asOfVersion": "3.0.0"
         },
+        {
+            "libraryName": "reduce-reducers",
+            "typingsPackageName": "reduce-reducers",
+            "sourceRepoURL": "https://github.com/redux-utilities/reduce-reducers",
+            "asOfVersion": "1.0.0"
+        },
         {
             "libraryName": "Redux",
             "typingsPackageName": "redux",
diff --git a/types/reduce-reducers/index.d.ts b/types/reduce-reducers/index.d.ts
deleted file mode 100644
index 89f98aa2b3..0000000000
--- a/types/reduce-reducers/index.d.ts
+++ /dev/null
@@ -1,82 +0,0 @@
-// Type definitions for reduce-reducers 0.3
-// Project: https://github.com/redux-utilities/reduce-reducers
-// Definitions by: Huy Nguyen <https://github.com/huy-nguyen>
-//                 Dalius Dobravolskas <https://github.com/daliusd>
-// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
-// TypeScript Version: 2.3
-
-import { Reducer } from 'redux';
-export default function reduceReducer<S>(r0: Reducer<S>, s: S | null): Reducer<S>;
-export default function reduceReducer<S>(r0: Reducer<S>, r1: Reducer<S>, s: S | null): Reducer<S>;
-export default function reduceReducer<S>(r0: Reducer<S>, r1: Reducer<S>, r2: Reducer<S>, s: S | null): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    r5: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    r5: Reducer<S>,
-    r6: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    r5: Reducer<S>,
-    r6: Reducer<S>,
-    r7: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    r5: Reducer<S>,
-    r6: Reducer<S>,
-    r7: Reducer<S>,
-    r8: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(
-    r0: Reducer<S>,
-    r1: Reducer<S>,
-    r2: Reducer<S>,
-    r3: Reducer<S>,
-    r4: Reducer<S>,
-    r5: Reducer<S>,
-    r6: Reducer<S>,
-    r7: Reducer<S>,
-    r8: Reducer<S>,
-    r9: Reducer<S>,
-    s: S | null,
-): Reducer<S>;
-export default function reduceReducer<S>(...reducers: Array<Reducer<S>>): Reducer<S>;
diff --git a/types/reduce-reducers/package.json b/types/reduce-reducers/package.json
deleted file mode 100644
index 7f5b19d45b..0000000000
--- a/types/reduce-reducers/package.json
+++ /dev/null
@@ -1,6 +0,0 @@
-{
-    "private": true,
-    "dependencies": {
-        "redux": "^4.0.0"
-    }
-}
diff --git a/types/reduce-reducers/reduce-reducers-tests.ts b/types/reduce-reducers/reduce-reducers-tests.ts
deleted file mode 100644
index 6d14449814..0000000000
--- a/types/reduce-reducers/reduce-reducers-tests.ts
+++ /dev/null
@@ -1,188 +0,0 @@
-import {
-    Reducer,
-    Action,
-} from 'redux';
-import reduceReducers from 'reduce-reducers';
-
-interface TestStore {
-    a: number;
-    b: string;
-}
-const firstReducer: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const secondReducer: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const finalReducer: (state: TestStore, action: Action) => TestStore = reduceReducers(firstReducer, secondReducer);
-const finalReducerWithState: (state: TestStore, action: Action) => TestStore = reduceReducers(firstReducer, secondReducer, null);
-
-const initialState: TestStore = {
-    a: 1,
-    b: '2',
-};
-
-const finalReducerWithInitialState: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    initialState);
-
-const reducer02: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer03: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer04: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer05: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer06: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer07: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer08: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-const reducer09: Reducer<TestStore, Action> = (store, action) => ({a: 0, b: ''});
-
-const finalReducerWithInitialState02: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    initialState);
-const finalReducerWithInitialState02null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    null);
-
-const finalReducerWithInitialState03: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    initialState);
-const finalReducerWithInitialState03null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    null);
-
-const finalReducerWithInitialState04: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    initialState);
-const finalReducerWithInitialState04null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    null);
-
-const finalReducerWithInitialState05: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    initialState);
-const finalReducerWithInitialState05null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    null);
-
-const finalReducerWithInitialState06: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    initialState);
-const finalReducerWithInitialState06null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    null);
-
-const finalReducerWithInitialState07: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    initialState);
-const finalReducerWithInitialState07null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    null);
-
-const finalReducerWithInitialState08: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    reducer08,
-    initialState);
-const finalReducerWithInitialState08null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    reducer08,
-    null);
-
-const finalReducerWithoutInitialState09: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    reducer08,
-    reducer09);
-const finalReducerWithInitialState09: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    reducer08,
-    reducer09,
-    initialState);
-const finalReducerWithInitialState09null: (state: TestStore, action: Action) => TestStore = reduceReducers(
-    firstReducer,
-    secondReducer,
-    reducer02,
-    reducer03,
-    reducer04,
-    reducer05,
-    reducer06,
-    reducer07,
-    reducer08,
-    reducer09,
-    null);
diff --git a/types/reduce-reducers/tsconfig.json b/types/reduce-reducers/tsconfig.json
deleted file mode 100644
index 938f4e9c10..0000000000
--- a/types/reduce-reducers/tsconfig.json
+++ /dev/null
@@ -1,23 +0,0 @@
-{
-    "compilerOptions": {
-        "module": "commonjs",
-        "lib": [
-            "es6"
-        ],
-        "noImplicitAny": true,
-        "noImplicitThis": true,
-        "strictNullChecks": true,
-        "strictFunctionTypes": true,
-        "baseUrl": "../",
-        "typeRoots": [
-            "../"
-        ],
-        "types": [],
-        "noEmit": true,
-        "forceConsistentCasingInFileNames": true
-    },
-    "files": [
-        "index.d.ts",
-        "reduce-reducers-tests.ts"
-    ]
-}
\ No newline at end of file
diff --git a/types/reduce-reducers/tslint.json b/types/reduce-reducers/tslint.json
deleted file mode 100644
index 3db14f85ea..0000000000
--- a/types/reduce-reducers/tslint.json
+++ /dev/null
@@ -1 +0,0 @@
-{ "extends": "dtslint/dt.json" }