diff --git a/.github/actions/render/action.yml b/.github/actions/render/action.yml
index 75cfd305..5f20e428 100644
--- a/.github/actions/render/action.yml
+++ b/.github/actions/render/action.yml
@@ -6,7 +6,7 @@ inputs:
     default: 'master'
   DITA_OT_VERSION:
     description: 'DITA-OT version used for rendering'
-    default: '4.2'
+    default: '4.2.1'
 runs:
   using: 'composite'
   steps:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4355e37d..649948d4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     env:
       WEBSITE_PLUGIN_BRANCH: 'master'
-      DITA_OT_VERSION: '4.2'
+      DITA_OT_VERSION: '4.2.1'
     steps:
       - name: Parse arguments
         run: |