diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index c8c80db0..45b29e1c 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -128,8 +128,8 @@ jobs:
             {
               cibuildwheel --print-build-identifiers --platform linux --archs x86_64 | jq -nRc '{"only": inputs, "os": "ubuntu-24.04"}' \
               && cibuildwheel --print-build-identifiers --platform linux --archs aarch64 | jq -nRc '{"only": inputs, "os": "ubuntu-24.04-arm"}' \
-              && cibuildwheel --print-build-identifiers --platform macos --archs x86_64 | jq -nRc '{"only": inputs, "os": "macos-15-intel"}' \
-              && cibuildwheel --print-build-identifiers --platform macos --archs arm64 | jq -nRc '{"only": inputs, "os": "macos-15"}' \
+              && cibuildwheel --print-build-identifiers --platform macos --archs x86_64 | jq -nRc '{"only": inputs, "os": "macos-26-intel"}' \
+              && cibuildwheel --print-build-identifiers --platform macos --archs arm64 | jq -nRc '{"only": inputs, "os": "macos-26"}' \
               && cibuildwheel --print-build-identifiers --platform windows --archs x86,AMD64 | jq -nRc '{"only": inputs, "os": "windows-2025"}' \
               && cibuildwheel --print-build-identifiers --platform windows --archs ARM64 | jq -nRc '{"only": inputs, "os": "windows-11-arm"}'
             } | jq -sc
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index aaff688c..01e44047 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -85,7 +85,7 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t", "3.15", "3.15t"]
-        os: [ubuntu-24.04, macos-15, windows-2025]
+        os: [ubuntu-24.04, macos-26, windows-2025]
         loop: [asyncio, uvloop]
         exclude:
           # uvloop does not support windows
@@ -93,7 +93,7 @@ jobs:
             os: windows-2025
           # github does not provide 3.9 cpython for arm64 runners
           - python-version: "3.9"
-            os: macos-15
+            os: macos-26
 
     runs-on: ${{ matrix.os }}
 
diff --git a/pyproject.toml b/pyproject.toml
index 9978f5ec..48d24588 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,6 +84,7 @@ skip = "cp38-*"
 [tool.cibuildwheel.macos]
 before-all = ".github/workflows/install-postgres.sh"
 test-command = "python {project}/tests/__init__.py"
+environment = {MACOSX_DEPLOYMENT_TARGET="11"}
 
 [tool.cibuildwheel.windows]
 test-command = "python {project}\\tests\\__init__.py"