diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5e52ec6f1..27a6fcae9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [macos-latest, ubuntu-18.04, ubuntu-20.04]
+        os: [macos-latest, ubuntu-20.04, ubuntu-22.04]
         crypto: [auto]
         include:
           - crypto: nettle
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 11fc322c4..7666d6154 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -45,7 +45,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-12]
+        os: [ubuntu-22.04, macos-12]
 
     steps:
     - uses: actions/checkout@v2