diff --git a/.github/scripts/update_dependency.py b/.github/scripts/update_dependency.py
index ec1be302a..460496234 100644
--- a/.github/scripts/update_dependency.py
+++ b/.github/scripts/update_dependency.py
@@ -11,6 +11,7 @@
 # ANY KIND, either express or implied. See the License for the specific
 # language governing permissions and limitations under the License.
 
+import argparse
 import fileinput
 from pathlib import Path
 
@@ -22,6 +23,13 @@
 # dependency, we can do this for the ones we own to make sure that when the sdk updates
 # its dependencies, these upstream github repos will not be impacted.
 
+parser = argparse.ArgumentParser()
+
+# --branch={branch_name}
+parser.add_argument("-b", "--branch", help="PR branch name")
+
+args = parser.parse_args()
+
 package = "amazon-braket-sdk"
 path = Path.cwd().parent.resolve()
 
@@ -32,3 +40,10 @@
         line if package not in line else f'"{package} @ file://{path}/{package}-python",\n'
     )
     print(replaced_line, end="")
+
+for line in fileinput.input("tox.ini", inplace=True):
+    # Ensure that tox uses the working branch for the SDK PR.
+    replaced_line = (
+        line if package not in line else f'"{package} @ file://{path}/{package}-python",\n'
+    )
+    print(replaced_line, end="")
diff --git a/.github/workflows/dependent-tests.yml b/.github/workflows/dependent-tests.yml
index aca79d599..8b2c34b17 100644
--- a/.github/workflows/dependent-tests.yml
+++ b/.github/workflows/dependent-tests.yml
@@ -26,19 +26,20 @@ jobs:
       uses: actions/setup-python@0a5c61591373683505ea898e09a3ea4f39ef2b9c # v5.0.0
       with:
         python-version: ${{ matrix.python-version }}
+    - name: Extract branch name
+      shell: bash
+      run: echo "branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
+      id: extract_branch
     - name: Install dependencies
       run: |
         pip install --upgrade pip
-        pip install --upgrade git+https://github.com/aws/amazon-braket-schemas-python.git@main
-        pip install --upgrade git+https://github.com/aws/amazon-braket-default-simulator-python.git@main
-        pip install -e .
         cd ..
         git clone https://github.com/aws/${{ matrix.dependent }}.git
         cd ${{ matrix.dependent }}
         # Update the amazon-braket-sdk dependency to reference the current commit
-        python ${GITHUB_WORKSPACE}/.github/scripts/update_dependency.py
-        pip install -e .[test]
+        python ${GITHUB_WORKSPACE}/.github/scripts/update_dependency.py --branch ${{ steps.extract_branch.outputs.branch }}
+        pip install tox
     - name: Run unit tests
       run: |
         cd ../${{ matrix.dependent }}
-        pytest
+        tox -e unit-tests