diff --git a/.github/workflows/deploy-and-branch.yml b/.github/workflows/deploy-and-branch.yml
index 8e910c8eeb..6cd4406f8d 100644
--- a/.github/workflows/deploy-and-branch.yml
+++ b/.github/workflows/deploy-and-branch.yml
@@ -11,7 +11,7 @@ on:
 env:
   CLOJURE_VERSION: "1.11.1.1413"
   NODE_VERSION: "22"
-  JAVA_VERSION: "11"
+  JAVA_VERSION: "21"
 
 jobs:
   build-and-deploy:
diff --git a/.github/workflows/deploy-db-test-pages.yml b/.github/workflows/deploy-db-test-pages.yml
index 94436a6f3e..2c0583da86 100644
--- a/.github/workflows/deploy-db-test-pages.yml
+++ b/.github/workflows/deploy-db-test-pages.yml
@@ -7,7 +7,7 @@ on:
 env:
   CLOJURE_VERSION: "1.11.1.1413"
   NODE_VERSION: '24'
-  JAVA_VERSION: "11"
+  JAVA_VERSION: "21"
 
 jobs:
   build-and-deploy:
diff --git a/.github/workflows/deploy-sync-test.yml b/.github/workflows/deploy-sync-test.yml
index 4c63178a1e..16ec2ce7b7 100644
--- a/.github/workflows/deploy-sync-test.yml
+++ b/.github/workflows/deploy-sync-test.yml
@@ -11,7 +11,7 @@ on:
 env:
   CLOJURE_VERSION: "1.11.1.1413"
   NODE_VERSION: "22"
-  JAVA_VERSION: "11"
+  JAVA_VERSION: "21"
 
 jobs:
   build-and-deploy: