diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index 6b1d5afee..f422e6c1f 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -26,9 +26,9 @@ jobs:
           [
             ubuntu-24.04,
             ubuntu-24.04-arm,
+            macos-15,
             macos-15-intel,
-            macos-14,
-            windows-2022,
+            windows-2025,
             windows-11-arm,
           ]
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-python-packaging-wheel-cibuildwheel.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a67774baf..32c7a9b9f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -44,11 +44,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        runs-on: [macos-15-intel, macos-14]
+        runs-on: [macos-15, macos-15-intel]
         compiler: [clang]
         config: [Release]
         include:
-          - runs-on: macos-14
+          - runs-on: macos-15
             compiler: clang
             config: Debug
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-cpp-tests-macos.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
@@ -171,9 +171,9 @@ jobs:
           [
             ubuntu-24.04,
             ubuntu-24.04-arm,
+            macos-15,
             macos-15-intel,
-            macos-14,
-            windows-2022,
+            windows-2025,
           ]
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-python-tests.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
     with:
@@ -197,7 +197,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        runs-on: [macos-15, windows-2025]
+        runs-on: [macos-14, windows-2022]
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-python-tests.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
     with:
       runs-on: ${{ matrix.runs-on }}
@@ -231,9 +231,9 @@ jobs:
           [
             ubuntu-24.04,
             ubuntu-24.04-arm,
+            macos-15,
             macos-15-intel,
-            macos-14,
-            windows-2022,
+            windows-2025,
             windows-11-arm,
           ]
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-python-packaging-wheel-cibuildwheel.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
@@ -262,7 +262,7 @@ jobs:
       - python-tests-extensive
       - build-sdist
       - build-wheel
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - name: Decide whether the needed jobs succeeded or failed
         uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
diff --git a/.github/workflows/release-drafter.yml b/.github/workflows/release-drafter.yml
index 762e70d76..d156ee4f7 100644
--- a/.github/workflows/release-drafter.yml
+++ b/.github/workflows/release-drafter.yml
@@ -16,7 +16,7 @@ jobs:
     permissions:
       contents: write
       pull-requests: write
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     steps:
       - uses: release-drafter/release-drafter@6db134d15f3909ccc9eefd369f02bd1e9cffdf97 # v6.2.0
         env:
diff --git a/.github/workflows/templating.yml b/.github/workflows/templating.yml
index 70b382c11..41cdefb15 100644
--- a/.github/workflows/templating.yml
+++ b/.github/workflows/templating.yml
@@ -8,7 +8,7 @@ on:
 jobs:
   render-template:
     name: Render template
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-slim
     permissions:
       contents: write
       pull-requests: write
diff --git a/.github/workflows/upstream.yml b/.github/workflows/upstream.yml
index a32e19087..38b46a9d4 100644
--- a/.github/workflows/upstream.yml
+++ b/.github/workflows/upstream.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        runs-on: [ubuntu-24.04, macos-14, windows-2022]
+        runs-on: [ubuntu-24.04, macos-15, windows-2025]
     uses: munich-quantum-toolkit/workflows/.github/workflows/reusable-qiskit-upstream-tests.yml@d6314c45667c131055a0389afc110e8dedc6da3f # v1.17.11
     with:
       runs-on: ${{ matrix.runs-on }}
diff --git a/pyproject.toml b/pyproject.toml
index 77b2f686f..da6f8cec3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -315,10 +315,6 @@ test-groups = ["test"]
 test-command = "pytest {project}/test/python"
 build-frontend = "build[uv]"
 enable = ["cpython-freethreading"]
-manylinux-x86_64-image = "manylinux_2_28"
-manylinux-aarch64-image = "manylinux_2_28"
-manylinux-ppc64le-image = "manylinux_2_28"
-manylinux-s390x-image = "manylinux_2_28"
 test-skip = [
   "cp3??t-*", # no freethreading qiskit wheels
   "cp*-win_arm64", # no numpy, qiskit, ... wheels