diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index 67104433a3dc..2d643d9940c3 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -1,14 +1,13 @@
 ---
 name: Wheel Builds
 on:
-  push:
-    tags:
-      - '*'
+  pull_request:
+    branches: '*'
+
 jobs:
   build_wheels:
     name: Build wheels
     runs-on: ${{ matrix.os }}
-    environment: release
     strategy:
       fail-fast: false
       matrix:
@@ -19,7 +18,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
         with:
           components: llvm-tools-preview
       - name: Build wheels
@@ -47,7 +46,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
         with:
           components: llvm-tools-preview
       - name: Build wheels
@@ -61,7 +60,6 @@ jobs:
   build_wheels_macos_arm:
     name: Build wheels on macOS arm
     runs-on: ${{ matrix.os }}
-    environment: release
     strategy:
       fail-fast: false
       matrix:
@@ -72,7 +70,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.17.0
         env:
@@ -85,27 +83,9 @@ jobs:
         with:
           path: ./wheelhouse/*.whl
           name: wheels-${{ matrix.os }}-arm
-  upload_shared_wheels:
-    name: Upload shared build wheels
-    runs-on: ubuntu-latest
-    environment: release
-    permissions:
-      id-token: write
-    needs: ["build_wheels", "build_wheels_macos_arm", "build_wheels_32bit"]
-    steps:
-      - uses: actions/download-artifact@v4
-        with:
-          pattern: 'wheels-*'
-          merge-multiple: true
-          path: deploy
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          packages-dir: deploy
   build_wheels_s390x:
     name: Build wheels on s390x
     runs-on: ${{ matrix.os }}
-    environment: release
     permissions:
       id-token: write
     strategy:
@@ -118,7 +98,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
@@ -132,14 +112,9 @@ jobs:
         with:
           name: wheels-${{ matrix.os }}-s390x
           path: ./wheelhouse/*.whl
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          packages-dir: wheelhouse/
   build_wheels_ppc64le:
     name: Build wheels on ppc64le
     runs-on: ${{ matrix.os }}
-    environment: release
     permissions:
       id-token: write
     strategy:
@@ -152,7 +127,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
@@ -166,14 +141,9 @@ jobs:
         with:
           name: wheels-${{ matrix.os }}-ppc64le
           path: ./wheelhouse/*.whl
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          packages-dir: wheelhouse/
   build_wheels_aarch64:
     name: Build wheels on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
-    environment: release
     permissions:
       id-token: write
     strategy:
@@ -186,7 +156,7 @@ jobs:
         name: Install Python
         with:
           python-version: '3.10'
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: dtolnay/rust-toolchain@1.70
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3
         with:
@@ -199,30 +169,3 @@ jobs:
         with:
           name: wheels-${{ matrix.os }}-aarch64
           path: ./wheelhouse/*.whl
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          packages-dir: wheelhouse/
-  sdist:
-    name: Build and publish sdist
-    runs-on: ${{ matrix.os }}
-    needs: ["upload_shared_wheels"]
-    environment: release
-    permissions:
-      id-token: write
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest]
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        name: Install Python
-        with:
-          python-version: '3.10'
-      - name: Install deps
-        run: pip install -U build
-      - name: Build sdist
-        run: python -m build . --sdist
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/pyproject.toml b/pyproject.toml
index 8cd6360f97c9..15f7245080d8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -148,7 +148,7 @@ before-test = "pip install --only-binary=numpy,scipy numpy scipy"
 # specific job override is needed. For example tier 1 platforms locally override
 # the before-build and environment configuration to enable PGO,
 # see: .github/workflows/wheels.yml for the jobs where this is done
-environment = 'RUSTUP_TOOLCHAIN="stable"'
+environment = 'RUSTUP_TOOLCHAIN="1.70"'
 
 [tool.cibuildwheel.linux]
 before-all = "yum install -y wget && {package}/tools/install_rust.sh"