diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 5c91b12..b1314bf 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -25,14 +25,6 @@ jobs:
           key: venv-${{ hashFiles('poetry.lock') }}
       - name: Install the project dependencies
         run: poetry install -q
-      - name: Run the automated tests
-        env:
-          ADJUST_EMAIL: ${{ secrets.ADJUST_EMAIL }}
-          ADJUST_PASSWORD: ${{ secrets.ADJUST_PASSWORD }}
-        run: |
-          echo email=$ADJUST_EMAIL
-          echo password=$ADJUST_PASSWORD
-          poetry run pytest --cov=adjust --cov-report xml:coverage.xml -vv
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v4
         with:
diff --git a/adjust/api/api.py b/adjust/api/api.py
index 38f906a..88e08cf 100755
--- a/adjust/api/api.py
+++ b/adjust/api/api.py
@@ -79,6 +79,13 @@ def _api(self, type: Type[T], path: str, method: str = "GET", **data: Any) -> T:
         self._log_in_if_needed()
         url = "https://api.adjust.com/" + path
         headers = dict(Accept="application/json")
+
+        # If logging in, add the authorization token to the headers
+        if path == "accounts/users/sign_in":
+            token = data['user']['password']
+            headers["Authorization"] = f"Token token={token}"
+            data = None
+        
         if not data:
             r = self._session.get(url, headers=headers)
         elif method == "PUT":