diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index 8a5a028..a2b8d7e 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -59,8 +59,8 @@
         "@types/eslint": "^9.6.1",
         "@types/eslint__js": "9.14.0",
         "@types/lodash": "4.17.16",
-        "@types/react": "19.1.2",
-        "@types/react-dom": "19.1.3",
+        "@types/react": "^19.1.2",
+        "@types/react-dom": "^19.1.3",
         "@types/react-router": "5.1.20",
         "@types/react-router-dom": "5.3.3",
         "@types/uuid": "^10.0.0",
diff --git a/frontend/package.json b/frontend/package.json
index 1a54ae0..173e1f4 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -89,8 +89,8 @@
     "@types/eslint": "^9.6.1",
     "@types/eslint__js": "9.14.0",
     "@types/lodash": "4.17.16",
-    "@types/react": "19.1.2",
-    "@types/react-dom": "19.1.3",
+    "@types/react": "^19.1.2",
+    "@types/react-dom": "^19.1.3",
     "@types/react-router": "5.1.20",
     "@types/react-router-dom": "5.3.3",
     "@types/uuid": "^10.0.0",
diff --git a/frontend/src/common/api/useGetCurrentUser.ts b/frontend/src/common/api/useGetCurrentUser.ts
index ad5ce8a..47c3f3d 100644
--- a/frontend/src/common/api/useGetCurrentUser.ts
+++ b/frontend/src/common/api/useGetCurrentUser.ts
@@ -28,7 +28,7 @@ export const useGetCurrentUser = () => {
         username: cognitoUser.username || '',
         attributes: {
           // Extract whatever attributes are available from the user object
-          email: cognitoUser.signInDetails?.loginId || '',
+          email: cognitoUser.attributes.email || '',
         },
       };
 
diff --git a/frontend/src/common/hooks/__tests__/useAuthOperations.test.ts b/frontend/src/common/hooks/__tests__/useAuthOperations.test.ts
index 8a3d972..86917be 100644
--- a/frontend/src/common/hooks/__tests__/useAuthOperations.test.ts
+++ b/frontend/src/common/hooks/__tests__/useAuthOperations.test.ts
@@ -6,6 +6,11 @@ import * as AuthErrorUtils from 'common/utils/auth-errors';
 import { AuthError, UserTokens } from 'common/models/auth';
 import { CognitoUser } from 'common/models/user';
 import * as UserMapper from 'common/utils/user-mapper';
+import {
+  ConfirmSignUpCommandOutput,
+  ResendConfirmationCodeCommandOutput,
+  SignUpCommandOutput,
+} from '@aws-sdk/client-cognito-identity-provider';
 
 // Mock the DirectCognitoAuthService
 vi.mock('common/services/auth/direct-cognito-auth-service', () => ({
@@ -110,12 +115,11 @@ describe('useAuthOperations', () => {
 
   describe('signUp', () => {
     it('should call DirectCognitoAuthService.signUp with correct parameters', async () => {
-      const mockSignUpResult = {
-        username: 'test@example.com',
-        userConfirmed: false,
-        isSignUpComplete: false,
-        nextStep: { signUpStep: 'CONFIRM_SIGN_UP' },
-      } as unknown;
+      const mockSignUpResult: SignUpCommandOutput = {
+        UserConfirmed: false,
+        UserSub: 'test-sub',
+        $metadata: {},
+      };
 
       vi.mocked(DirectCognitoAuthService.signUp).mockResolvedValueOnce(mockSignUpResult);
 
@@ -174,10 +178,9 @@ describe('useAuthOperations', () => {
 
   describe('confirmSignUp', () => {
     it('should call DirectCognitoAuthService.confirmSignUp with correct parameters', async () => {
-      const mockConfirmResult = {
-        isSignUpComplete: true,
-        nextStep: { signUpStep: 'DONE' },
-      } as unknown;
+      const mockConfirmResult: ConfirmSignUpCommandOutput = {
+        $metadata: {},
+      };
 
       vi.mocked(DirectCognitoAuthService.confirmSignUp).mockResolvedValueOnce(mockConfirmResult);
 
@@ -198,11 +201,14 @@ describe('useAuthOperations', () => {
 
   describe('resendConfirmationCode', () => {
     it('should call DirectCognitoAuthService.resendConfirmationCode with correct email', async () => {
-      const mockResult = {
-        deliveryMedium: 'EMAIL',
-        destination: 'test@example.com',
-        attributeName: 'email',
-      } as unknown;
+      const mockResult: ResendConfirmationCodeCommandOutput = {
+        CodeDeliveryDetails: {
+          AttributeName: 'email',
+          DeliveryMedium: 'EMAIL',
+          Destination: 'test@example.com',
+        },
+        $metadata: {},
+      };
 
       vi.mocked(DirectCognitoAuthService.resendConfirmationCode).mockResolvedValueOnce(mockResult);
 
@@ -231,7 +237,16 @@ describe('useAuthOperations', () => {
       const mockUser = { id: 'mock-id', username: 'test@example.com', email: 'test@example.com' };
 
       // First, we need to set up the user by simulating a successful sign-in
-      vi.mocked(DirectCognitoAuthService.signIn).mockResolvedValueOnce({});
+      const mockTokens: UserTokens = {
+        access_token: 'token',
+        id_token: 'id-token',
+        refresh_token: 'refresh-token',
+        token_type: 'bearer',
+        expires_in: 3600,
+        expires_at: new Date().toISOString(),
+      };
+
+      vi.mocked(DirectCognitoAuthService.signIn).mockResolvedValueOnce(mockTokens);
       vi.mocked(UserMapper.mapCognitoUserToAppUser).mockReturnValueOnce(mockUser as CognitoUser);
 
       await act(async () => {
diff --git a/frontend/src/common/models/user.ts b/frontend/src/common/models/user.ts
index a2dacec..bc5b607 100644
--- a/frontend/src/common/models/user.ts
+++ b/frontend/src/common/models/user.ts
@@ -35,6 +35,14 @@ export type User = {
   company: Company;
 };
 
+/**
+ * Login details from Cognito
+ */
+export type SignInDetails = {
+  loginId?: string;
+  // Add any other properties that might be needed
+};
+
 /**
  * Cognito User type aligned with AWS Cognito attributes
  */
@@ -63,4 +71,6 @@ export type CognitoUser = {
   createdAt?: string;
   // Updated date
   updatedAt?: string;
+  // Sign-in details (optional)
+  signInDetails?: SignInDetails;
 };
diff --git a/frontend/src/common/providers/AuthProvider.tsx b/frontend/src/common/providers/AuthProvider.tsx
index afc1547..d8d891f 100644
--- a/frontend/src/common/providers/AuthProvider.tsx
+++ b/frontend/src/common/providers/AuthProvider.tsx
@@ -126,7 +126,7 @@ const AuthProvider = ({ children }: PropsWithChildren): JSX.Element => {
             const userData = {
               username: currentUser.username || '',
               attributes: {
-                email: currentUser.signInDetails?.loginId || '',
+                email: currentUser.attributes.email || '',
                 given_name: currentUser.username?.split('@')[0] || '',
                 family_name: '',
               },
diff --git a/frontend/src/types/react.d.ts b/frontend/src/types/react.d.ts
new file mode 100644
index 0000000..fecc9bc
--- /dev/null
+++ b/frontend/src/types/react.d.ts
@@ -0,0 +1,12 @@
+/// <reference types="react" />
+
+declare namespace JSX {
+  // Added a property to avoid the "interface declaring no members is equivalent to its supertype" error
+  interface Element
+    extends React.ReactElement<React.ComponentProps<React.ElementType>, React.ElementType> {
+    _jsx_element?: true;
+  }
+  interface IntrinsicElements {
+    [elemName: string]: React.DetailedHTMLProps<React.HTMLAttributes<HTMLElement>, HTMLElement>;
+  }
+}
diff --git a/frontend/tsconfig.json b/frontend/tsconfig.json
index 5d6c84c..fb64999 100644
--- a/frontend/tsconfig.json
+++ b/frontend/tsconfig.json
@@ -15,7 +15,7 @@
     "isolatedModules": true,
     "noEmit": true,
     "jsx": "react-jsx",
-    "types": ["eslint"],
+    "types": ["eslint", "react", "react-dom"],
 
     /* Absolute imports */
     "paths": {