diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 3675f66..b38f6e1 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -22,7 +22,7 @@ jobs:
           fail_ci_if_error: true
     services:
       greenmail:
-        image: greenmail/standalone:1.6.3
+        image: greenmail/standalone:1.6.8
         ports:
           - 3025:3025
           - 3110:3110
diff --git a/.github/workflows/minimal.yml b/.github/workflows/minimal.yml
index 753211e..4ea4722 100644
--- a/.github/workflows/minimal.yml
+++ b/.github/workflows/minimal.yml
@@ -28,7 +28,7 @@ jobs:
           command: test
     services:
       greenmail:
-        image: greenmail/standalone:1.6.3
+        image: greenmail/standalone:1.6.8
         ports:
           - 3025:3025
           - 3110:3110
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5c862d5..6df1579 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
           command: test
     services:
       greenmail:
-        image: greenmail/standalone:1.6.3
+        image: greenmail/standalone:1.6.8
         ports:
           - 3025:3025
           - 3110:3110
diff --git a/README.md b/README.md
index 85fe89b..3b2d745 100644
--- a/README.md
+++ b/README.md
@@ -91,7 +91,7 @@ running](http://www.icegreen.com/greenmail/#deploy_docker_standalone). The
 easiest way to do that is with Docker:
 
 ```console
-$ docker pull greenmail/standalone:1.6.3
+$ docker pull greenmail/standalone:1.6.8
 $ docker run -t -i -e GREENMAIL_OPTS='-Dgreenmail.setup.test.all -Dgreenmail.hostname=0.0.0.0 -Dgreenmail.auth.disabled -Dgreenmail.verbose' -p 3025:3025 -p 3110:3110 -p 3143:3143 -p 3465:3465 -p 3993:3993 -p 3995:3995 greenmail/standalone:1.6.3
 ```