diff --git a/requirements/requirements-test.in b/requirements/requirements-test.in
index 19dec4a..a1b012a 100644
--- a/requirements/requirements-test.in
+++ b/requirements/requirements-test.in
@@ -1,4 +1,5 @@
 pytest == 7.4.4
 flake8
 pytest-cov
-tox
\ No newline at end of file
+tox
+gradient-free-optimizers
\ No newline at end of file
diff --git a/requirements/requirements-test.txt b/requirements/requirements-test.txt
index e313bbc..0efd72d 100644
--- a/requirements/requirements-test.txt
+++ b/requirements/requirements-test.txt
@@ -22,15 +22,27 @@ filelock==3.13.1
     #   virtualenv
 flake8==7.0.0
     # via -r requirements-test.in
+gradient-free-optimizers==1.3.0
+    # via -r requirements-test.in
 iniconfig==2.0.0
     # via pytest
+joblib==1.3.2
+    # via scikit-learn
 mccabe==0.7.0
     # via flake8
+numpy==1.26.4
+    # via
+    #   gradient-free-optimizers
+    #   pandas
+    #   scikit-learn
+    #   scipy
 packaging==24.0
     # via
     #   pyproject-api
     #   pytest
     #   tox
+pandas==1.5.3
+    # via gradient-free-optimizers
 platformdirs==4.2.0
     # via
     #   tox
@@ -51,6 +63,20 @@ pytest==7.4.4
     #   pytest-cov
 pytest-cov==4.1.0
     # via -r requirements-test.in
+python-dateutil==2.9.0.post0
+    # via pandas
+pytz==2024.1
+    # via pandas
+scikit-learn==1.4.1.post1
+    # via gradient-free-optimizers
+scipy==1.12.0
+    # via
+    #   gradient-free-optimizers
+    #   scikit-learn
+six==1.16.0
+    # via python-dateutil
+threadpoolctl==3.4.0
+    # via scikit-learn
 tomli==2.0.1
     # via
     #   coverage
@@ -59,5 +85,7 @@ tomli==2.0.1
     #   tox
 tox==4.14.2
     # via -r requirements-test.in
+tqdm==4.66.2
+    # via gradient-free-optimizers
 virtualenv==20.25.1
     # via tox