diff --git a/.circleci/config.yml b/.circleci/config.yml
index 8f5c98550..6d76eb045 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -84,7 +84,6 @@ jobs:
             pip install --upgrade pip spin
             spin setup-submodule
             pip install .[build,doc]
-            pip install --pre --extra-index https://pypi.anaconda.org/scientific-python-nightly-wheels/simple scikit-learn --force
 
       - run:
           name: build treeple
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 492f70850..c4cb3b447 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -85,7 +85,7 @@ jobs:
           pip install -r test_requirements.txt
 
       - name: Install nightly wheels for scikit-learn (only for ubuntu 3.12)
-        if: ${{ matrix.python-version == '3.12' }} && ${{ matrix.os == 'ubuntu-latest' }}
+        if: ${{ matrix.python-version == '3.12' && matrix.os == 'ubuntu-latest' }}
         run: |
           pip install --pre --extra-index https://pypi.anaconda.org/scientific-python-nightly-wheels/simple scikit-learn --force
 
@@ -189,7 +189,6 @@ jobs:
           pip install compilers
           pip install -r build_requirements.txt
           pip install -r test_requirements.txt
-          pip install --pre --extra-index https://pypi.anaconda.org/scientific-python-nightly-wheels/simple scikit-learn --force
 
       - name: Prepare compiler cache
         id: prep-ccache
@@ -285,7 +284,6 @@ jobs:
           pip install spin
           pip install -r build_requirements.txt
           pip install -r test_requirements.txt
-          pip install --pre --extra-index https://pypi.anaconda.org/scientific-python-nightly-wheels/simple scikit-learn --force
 
       - name: Build
         run: |
diff --git a/build_requirements.txt b/build_requirements.txt
index ec63cfb3b..90af56671 100644
--- a/build_requirements.txt
+++ b/build_requirements.txt
@@ -3,7 +3,7 @@ meson-python>=0.16.0
 cython>=3.0.10
 ninja
 numpy
-scikit-learn>=1.5.0
+scikit-learn~=1.6.0
 click
 rich-click
 doit
diff --git a/pyproject.toml b/pyproject.toml
index 2bb8c6a23..543e0e767 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ requires = [
   "setuptools<=65.5",
   "packaging",
   "Cython>=3.0.10",
-  "scikit-learn>=1.6.0",
+  "scikit-learn~=1.6.0",
   "scipy>=1.5.0",
   "numpy>=1.25; python_version>='3.9'"
 ]