diff --git a/.github/workflows/tests-coverage.yml b/.github/workflows/tests-coverage.yml
index 951972d4..5468cf56 100644
--- a/.github/workflows/tests-coverage.yml
+++ b/.github/workflows/tests-coverage.yml
@@ -20,13 +20,16 @@ jobs:
         include:
           - name-suffix: "coverage"
             os: ubuntu-latest
-            python-version: 3.8
+            python-version: 3.9
           - name-suffix: "basic"
             os: ubuntu-latest
-            python-version: 3.9
+            python-version: 3.10
+          - name-suffix: "basic"
+            os: ubuntu-latest
+            python-version: 3.11
           - name-suffix: "basic"
             os: windows-latest
-            python-version: 3.8
+            python-version: 3.9
 
     steps:
       - name: Checkout repo
@@ -71,7 +74,7 @@ jobs:
           python -m pytest --runslow --disable-warnings --color=yes -v
 
       - name: Run tests, coverage and send to coveralls
-        if: runner.os == 'Linux' && matrix.python-version == 3.8 && matrix.name-suffix == 'coverage'
+        if: runner.os == 'Linux' && matrix.python-version == 3.9 && matrix.name-suffix == 'coverage'
         run: |
           pip install pytest pytest-notebook coveralls
           coverage run --source=edisgo -m pytest --runslow --runonlinux --disable-warnings --color=yes -v
diff --git a/edisgo/network/topology.py b/edisgo/network/topology.py
index f411bf31..2462314f 100755
--- a/edisgo/network/topology.py
+++ b/edisgo/network/topology.py
@@ -2123,7 +2123,7 @@ def _choose_random_substation_id():
 
             """
             if comp_type == "generator":
-                random.seed(a=comp_data["generator_id"])
+                random.seed(a=int(comp_data["generator_id"]))
             elif comp_type == "storage_unit":
                 random.seed(a=len(self.storage_units_df))
             else:
diff --git a/setup.py b/setup.py
index 0d83f01f..93acf2c4 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ def read(fname):
     "pypsa",
     "pyyaml",
     "saio",
-    "scikit-learn <= 1.1.1",
+    "scikit-learn < 1.3.0",
     "shapely >= 1.7.0",
     "sqlalchemy < 1.4.0",
     "sshtunnel",