diff --git a/.rultor.yml b/.rultor.yml
index 0e936ea0..7b86c524 100644
--- a/.rultor.yml
+++ b/.rultor.yml
@@ -3,7 +3,8 @@ assets:
   pubring.gpg: yegor256/home#assets/pubring.gpg
   secring.gpg: yegor256/home#assets/secring.gpg
 install: |
-  sudo apt install openjdk-16-jdk
+  sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886 E1DF1F24 3DD9F856
+  sudo apt install -y openjdk-16-jdk
   ls -a /usr/lib/jvm/
   sudo export JAVA_HOME=/usr/lib/jvm/openjdk-16-jdk
   echo $JAVA_HOME
@@ -16,4 +17,4 @@ release:
   script: |-
     git commit -am "${tag}"
     mv ../gradle.properties .
-    ./gradlew build publish --info -PmvnPublicationVersion=${tag}
\ No newline at end of file
+    ./gradlew build publish --info -PmvnPublicationVersion=${tag}