diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e36c2b1..2b05631 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,7 +4,7 @@ on: [push]
 
 jobs:
   build:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-26.04
     strategy:
       max-parallel: 4
       matrix:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 74ddb9f..74f3e2e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-26.04
     strategy:
       matrix:
         python-version: [3.9]