diff --git a/src/components/Project/ProjectActions.ts b/src/components/Project/ProjectActions.ts
index 70bd79f323..ba4348c53c 100644
--- a/src/components/Project/ProjectActions.ts
+++ b/src/components/Project/ProjectActions.ts
@@ -1,31 +1,35 @@
+import { Action, PayloadAction } from "@reduxjs/toolkit";
+
 import { Project, User } from "api/models";
 import { getAllProjectUsers, updateProject } from "backend";
 import { setProjectId } from "backend/localStorage";
 import {
-  ProjectAction,
-  ProjectActionType,
-} from "components/Project/ProjectReduxTypes";
+  resetAction,
+  setProjectAction,
+  setUsersAction,
+} from "components/Project/ProjectReducer";
 import { StoreStateDispatch } from "types/Redux/actions";
+import { newProject } from "types/project";
 
-export function setCurrentProject(payload?: Project): ProjectAction {
-  return {
-    type: ProjectActionType.SET_CURRENT_PROJECT,
-    payload,
-  };
+// Action Creation Functions
+
+export function resetCurrentProject(): Action {
+  return resetAction();
 }
 
-export function setCurrentProjectUsers(payload?: User[]): ProjectAction {
-  return {
-    type: ProjectActionType.SET_CURRENT_PROJECT_USERS,
-    payload,
-  };
+export function setCurrentProject(project?: Project): PayloadAction {
+  return setProjectAction(project ?? newProject());
 }
 
-export function clearCurrentProject() {
-  return (dispatch: StoreStateDispatch) => {
-    setProjectId();
-    dispatch(setCurrentProject());
-    dispatch(setCurrentProjectUsers());
+export function setCurrentProjectUsers(users?: User[]): PayloadAction {
+  return setUsersAction(users ?? []);
+}
+
+// Dispatch Functions
+
+export function asyncRefreshProjectUsers(projectId: string) {
+  return async (dispatch: StoreStateDispatch) => {
+    dispatch(setCurrentProjectUsers(await getAllProjectUsers(projectId)));
   };
 }
 
@@ -36,9 +40,10 @@ export function asyncUpdateCurrentProject(project: Project) {
   };
 }
 
-export function asyncRefreshProjectUsers(projectId: string) {
-  return async (dispatch: StoreStateDispatch) => {
-    dispatch(setCurrentProjectUsers(await getAllProjectUsers(projectId)));
+export function clearCurrentProject() {
+  return (dispatch: StoreStateDispatch) => {
+    setProjectId();
+    dispatch(resetCurrentProject());
   };
 }
 
diff --git a/src/components/Project/ProjectReducer.ts b/src/components/Project/ProjectReducer.ts
index 13aa66a8f1..7670d31c74 100644
--- a/src/components/Project/ProjectReducer.ts
+++ b/src/components/Project/ProjectReducer.ts
@@ -1,27 +1,28 @@
-import {
-  CurrentProjectState,
-  defaultState,
-  ProjectAction,
-  ProjectActionType,
-} from "components/Project/ProjectReduxTypes";
-import { StoreAction, StoreActionTypes } from "rootActions";
-import { newProject } from "types/project";
+import { createSlice } from "@reduxjs/toolkit";
 
-export const projectReducer = (
-  state = defaultState,
-  action: ProjectAction | StoreAction
-): CurrentProjectState => {
-  switch (action.type) {
-    case ProjectActionType.SET_CURRENT_PROJECT:
-      if (action.payload?.id === state.project.id) {
-        return { ...state, project: action.payload };
+import { defaultState } from "components/Project/ProjectReduxTypes";
+import { StoreActionTypes } from "rootActions";
+
+const projectSlice = createSlice({
+  name: "currentProjectState",
+  initialState: defaultState,
+  reducers: {
+    resetAction: () => defaultState,
+    setProjectAction: (state, action) => {
+      if (state.project.id !== action.payload.id) {
+        state.users = [];
       }
-      return { project: action.payload ?? newProject(), users: [] };
-    case ProjectActionType.SET_CURRENT_PROJECT_USERS:
-      return { ...state, users: action.payload ?? [] };
-    case StoreActionTypes.RESET:
-      return defaultState;
-    default:
-      return state;
-  }
-};
+      state.project = action.payload;
+    },
+    setUsersAction: (state, action) => {
+      state.users = action.payload;
+    },
+  },
+  extraReducers: (builder) =>
+    builder.addCase(StoreActionTypes.RESET, () => defaultState),
+});
+
+export const { resetAction, setProjectAction, setUsersAction } =
+  projectSlice.actions;
+
+export default projectSlice.reducer;
diff --git a/src/components/Project/ProjectReduxTypes.ts b/src/components/Project/ProjectReduxTypes.ts
index 0fb02750e5..1ba4450825 100644
--- a/src/components/Project/ProjectReduxTypes.ts
+++ b/src/components/Project/ProjectReduxTypes.ts
@@ -1,25 +1,6 @@
 import { Project, User } from "api/models";
 import { newProject } from "types/project";
 
-export enum ProjectActionType {
-  SET_CURRENT_PROJECT = "SET_CURRENT_PROJECT",
-  SET_CURRENT_PROJECT_USERS = "SET_CURRENT_PROJECT_USERS",
-}
-
-export interface SetCurrentProjectAction {
-  type: ProjectActionType.SET_CURRENT_PROJECT;
-  payload?: Project;
-}
-
-export interface SetCurrentProjectUsersAction {
-  type: ProjectActionType.SET_CURRENT_PROJECT_USERS;
-  payload?: User[];
-}
-
-export type ProjectAction =
-  | SetCurrentProjectAction
-  | SetCurrentProjectUsersAction;
-
 export interface CurrentProjectState {
   project: Project;
   users: User[];
diff --git a/src/components/Project/tests/ProjectActions.test.tsx b/src/components/Project/tests/ProjectActions.test.tsx
new file mode 100644
index 0000000000..b8fbd72593
--- /dev/null
+++ b/src/components/Project/tests/ProjectActions.test.tsx
@@ -0,0 +1,104 @@
+import { PreloadedState } from "redux";
+
+import { Project } from "api/models";
+import { defaultState } from "components/App/DefaultState";
+import {
+  asyncRefreshProjectUsers,
+  asyncUpdateCurrentProject,
+  clearCurrentProject,
+  setNewCurrentProject,
+} from "components/Project/ProjectActions";
+import { RootState, setupStore } from "store";
+import { newProject } from "types/project";
+import { newUser } from "types/user";
+
+jest.mock("backend", () => ({
+  getAllProjectUsers: (...args: any[]) => mockGetAllProjectUsers(...args),
+  updateProject: (...args: any[]) => mockUpdateProject(...args),
+}));
+
+const mockGetAllProjectUsers = jest.fn();
+const mockUpdateProject = jest.fn();
+const mockProjId = "project-id";
+
+// Preloaded values for store when testing
+const persistedDefaultState: PreloadedState<RootState> = {
+  ...defaultState,
+  _persist: { version: 1, rehydrated: false },
+};
+
+describe("ProjectActions", () => {
+  describe("asyncUpdateCurrentProject", () => {
+    it("updates the backend and correctly affects state for different id", async () => {
+      const proj: Project = { ...newProject(), id: mockProjId };
+      const store = setupStore({
+        ...persistedDefaultState,
+        currentProjectState: { project: proj, users: [newUser()] },
+      });
+      const id = "new-id";
+      await store.dispatch(asyncUpdateCurrentProject({ ...proj, id }));
+      expect(mockUpdateProject).toBeCalledTimes(1);
+      const { project, users } = store.getState().currentProjectState;
+      expect(project.id).toEqual(id);
+      expect(users).toHaveLength(0);
+    });
+
+    it("updates the backend and correctly affects state for same id", async () => {
+      const proj: Project = { ...newProject(), id: mockProjId };
+      const store = setupStore({
+        ...persistedDefaultState,
+        currentProjectState: { project: proj, users: [newUser()] },
+      });
+      const name = "new-name";
+      await store.dispatch(asyncUpdateCurrentProject({ ...proj, name }));
+      expect(mockUpdateProject).toBeCalledTimes(1);
+      const { project, users } = store.getState().currentProjectState;
+      expect(project.name).toEqual(name);
+      expect(users).toHaveLength(1);
+    });
+  });
+
+  describe("asyncRefreshProjectUsers", () => {
+    it("correctly affects state", async () => {
+      const proj: Project = { ...newProject(), id: mockProjId };
+      const store = setupStore({
+        ...persistedDefaultState,
+        currentProjectState: { project: proj, users: [] },
+      });
+      const mockUsers = [newUser(), newUser(), newUser()];
+      mockGetAllProjectUsers.mockResolvedValueOnce(mockUsers);
+      await store.dispatch(asyncRefreshProjectUsers("mockProjId"));
+      const { project, users } = store.getState().currentProjectState;
+      expect(project.id).toEqual(mockProjId);
+      expect(users).toHaveLength(mockUsers.length);
+    });
+  });
+
+  describe("clearCurrentProject", () => {
+    it("correctly affects state", () => {
+      const nonDefaultState = {
+        project: { ...newProject(), id: "nonempty-string" },
+        users: [newUser()],
+      };
+      const store = setupStore({
+        ...persistedDefaultState,
+        currentProjectState: nonDefaultState,
+      });
+      store.dispatch(clearCurrentProject());
+      const { project, users } = store.getState().currentProjectState;
+      expect(project.id).toEqual("");
+      expect(users).toHaveLength(0);
+    });
+  });
+
+  describe("setNewCurrentProject", () => {
+    it("correctly affects state and doesn't update the backend", () => {
+      const proj: Project = { ...newProject(), id: mockProjId };
+      const store = setupStore();
+      store.dispatch(setNewCurrentProject(proj));
+      expect(mockUpdateProject).not.toBeCalled();
+      const { project } = store.getState().currentProjectState;
+      expect(project.id).toEqual(mockProjId);
+    });
+  });
+});
diff --git a/src/components/Project/tests/ProjectReducer.test.tsx b/src/components/Project/tests/ProjectReducer.test.tsx
deleted file mode 100644
index 1c4cee05bc..0000000000
--- a/src/components/Project/tests/ProjectReducer.test.tsx
+++ /dev/null
@@ -1,74 +0,0 @@
-import { projectReducer } from "components/Project/ProjectReducer";
-import {
-  CurrentProjectState,
-  defaultState,
-  ProjectAction,
-  ProjectActionType,
-} from "components/Project/ProjectReduxTypes";
-import { StoreAction, StoreActionTypes } from "rootActions";
-import { newProject } from "types/project";
-import { newUser } from "types/user";
-
-describe("ProjectReducer", () => {
-  it("returns default state when passed reset action", () => {
-    const action: StoreAction = {
-      type: StoreActionTypes.RESET,
-    };
-
-    expect(projectReducer({} as CurrentProjectState, action)).toEqual(
-      defaultState
-    );
-  });
-
-  describe("SetCurrentProject", () => {
-    it("Preserves users when project id is the same", () => {
-      const id = "same";
-      const action: ProjectAction = {
-        type: ProjectActionType.SET_CURRENT_PROJECT,
-        payload: { ...newProject(), id },
-      };
-
-      const user = newUser();
-      expect(
-        projectReducer(
-          { project: { id }, users: [user] } as CurrentProjectState,
-          action
-        )
-      ).toEqual({ project: action.payload, users: [user] });
-    });
-
-    it("Resets users when project id changes", () => {
-      const action: ProjectAction = {
-        type: ProjectActionType.SET_CURRENT_PROJECT,
-        payload: newProject(),
-      };
-
-      expect(
-        projectReducer(
-          {
-            project: { id: "different" },
-            users: [newUser()],
-          } as CurrentProjectState,
-          action
-        )
-      ).toEqual({ project: action.payload, users: [] });
-    });
-  });
-
-  describe("SetCurrentProjectUsers", () => {
-    it("Updates users; preserves project.", () => {
-      const action: ProjectAction = {
-        type: ProjectActionType.SET_CURRENT_PROJECT_USERS,
-        payload: [],
-      };
-
-      const id = "unique";
-      expect(
-        projectReducer(
-          { project: { id }, users: [newUser()] } as CurrentProjectState,
-          action
-        )
-      ).toEqual({ project: { id }, users: [] });
-    });
-  });
-});
diff --git a/src/rootReducer.ts b/src/rootReducer.ts
index f9405cbbab..709287dd1e 100644
--- a/src/rootReducer.ts
+++ b/src/rootReducer.ts
@@ -2,7 +2,7 @@ import { combineReducers, Reducer } from "redux";
 
 import goalsReducer from "components/GoalTimeline/Redux/GoalReducer";
 import loginReducer from "components/Login/Redux/LoginReducer";
-import { projectReducer } from "components/Project/ProjectReducer";
+import projectReducer from "components/Project/ProjectReducer";
 import exportProjectReducer from "components/ProjectExport/Redux/ExportProjectReducer";
 import pronunciationsReducer from "components/Pronunciations/Redux/PronunciationsReducer";
 import treeViewReducer from "components/TreeView/Redux/TreeViewReducer";