diff --git a/.github/renovate.json b/.github/renovate.json
index df8acf11e36..c4e222a25f2 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -9,6 +9,7 @@
   "includePaths": ["gradle/libs.versions.toml", "versions.*", "build.gradle", ".github/workflows/*"],
   "postUpgradeTasks": {
     "commands": [
+      "java -version 2>&1 | grep -q '21\\.' || install-tool java 21.0.11+10.0.LTS",
       "./gradlew resolveAndLockAll --write-locks",
       "./gradlew kotlinUpgradeYarnLock",
       "./gradlew updateLicenses"