diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8f89d3f..3ef8c6e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,8 +32,8 @@ jobs:
           - gcc
         container:
           - almalinux:8
-          - alpine:3.15
-          - ubuntu:18.04
+          - alpine:3.18
+          - ubuntu:22.04
 
     container: ${{ matrix.container }}
 
diff --git a/.github/workflows/regressions.yml b/.github/workflows/regressions.yml
index af3cc05..f524099 100644
--- a/.github/workflows/regressions.yml
+++ b/.github/workflows/regressions.yml
@@ -41,7 +41,7 @@ jobs:
         compiler:
           - gcc
         container:
-          - ubuntu:18.04
+          - ubuntu:22.04
 
     container: ${{ matrix.container }}