diff --git a/.drone.yml b/.drone.yml
index 6def4d2..e23c01a 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -16,7 +16,7 @@ steps:
 - name: markdown lint
   commands:
   - markdownlint *.md
-  image: git.cryptic.systems/volker.raschek/markdownlint:0.43.0
+  image: git.cryptic.systems/volker.raschek/markdownlint:0.44.0
   resources:
     limits:
       cpu: 150
@@ -69,7 +69,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: false
     dockerfile: Dockerfile
@@ -135,7 +135,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: false
     dockerfile: Dockerfile
@@ -201,7 +201,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: false
     dockerfile: Dockerfile
@@ -265,7 +265,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: false
     dockerfile: Dockerfile
@@ -449,7 +449,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: true
     auto_tag_suffix: amd64
@@ -507,7 +507,7 @@ steps:
   image: git.cryptic.systems/volker.raschek/git:1.4.0
 
 - name: build
-  image: harbor.cryptic.systems/docker/plugins/docker:20.18.6
+  image: harbor.cryptic.systems/docker/plugins/docker:20.18.8
   settings:
     auto_tag: true
     auto_tag_suffix: arm64-v8