diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index fc84cb7..990b7e2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -11,7 +11,7 @@ jobs:
   test:
     name: "Test with Python ${{ matrix.python-version }}"
     timeout-minutes: 5
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
@@ -31,7 +31,7 @@ jobs:
           poetry build
   semgrep:
     timeout-minutes: 20
-    runs-on: ubuntu-24.04
+    runs-on: ubuntu-26.04
     container:
       image: semgrep/semgrep:1.138.0
     steps:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 90b381a..693ff5e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   pypi-publish:
     name: Upload release to PyPI
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-26.04
     environment: release
     permissions:
       id-token: write