diff --git a/.github/workflows/conda-build.yml b/.github/workflows/conda-build.yml
index 76d2e4185..e42dc6bc6 100644
--- a/.github/workflows/conda-build.yml
+++ b/.github/workflows/conda-build.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.11"]
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 36fc09369..477cda9af 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.11"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 980cade7f..24876eaf5 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
     "ray[default]==2.37.0",
     "ruamel.yaml==0.17.31",
     "scikit-allel==1.3.8",
-    "scikit-learn==1.5.2",
+    "scikit-learn==1.2.2",
     "skops==0.7.post0",
     "tqdm==4.66.3",
     "cloudpickle==3.0.0",