diff --git a/.gitea/workflows/build.yml b/.gitea/workflows/build.yml
index 07c06e0..e069a68 100644
--- a/.gitea/workflows/build.yml
+++ b/.gitea/workflows/build.yml
@@ -7,13 +7,13 @@ on:
 
 jobs:
   audit:
-    runs-on: buildenv
+    container: buildenv:5
     steps:
       - uses: actions/checkout@v4
       - run: hlint src lib test
 
   test:
-    runs-on: buildenv
+    container: buildenv:5
     steps:
       - name: Set up environment
         run: |
@@ -25,7 +25,7 @@ jobs:
       - run: cabal test --test-show-details=streaming
 
   release:
-    runs-on: buildenv
+    container: buildenv:5
     steps:
       - name: Set up environment
         run: |
diff --git a/.gitea/workflows/deploy.yaml b/.gitea/workflows/deploy.yaml
index 400464b..2b039c1 100644
--- a/.gitea/workflows/deploy.yaml
+++ b/.gitea/workflows/deploy.yaml
@@ -7,7 +7,7 @@ on:
 
 jobs:
   release:
-    runs-on: buildenv
+    container: buildenv:5
     steps:
       - name: Set up environment
         run: |
diff --git a/slackbuilder.cabal b/slackbuilder.cabal
index b71f612..297ebd7 100644
--- a/slackbuilder.cabal
+++ b/slackbuilder.cabal
@@ -7,7 +7,7 @@ bug-reports: https://git.caraus.tech/OSS/slackbuilder/issues
 
 license: MPL-2.0
 license-files: LICENSE
-copyright: (c) 2023-2025 Eugen Wissner
+copyright: (c) 2023-2026 Eugen Wissner
 
 author: Eugen Wissner
 maintainer: belka@caraus.de