diff --git a/.rultor.yml b/.rultor.yml
index c7a1cbda7..90493b884 100644
--- a/.rultor.yml
+++ b/.rultor.yml
@@ -6,7 +6,7 @@ assets:
   secring.gpg: yegor256/polystat-secrets#secring.gpg
   docker-password: yegor256/polystat-secrets#docker-password
 install: |-
-  update-java-alternatives --set /usr/lib/jvm/java-1.17.0-openjdk-amd64
+  sudo update-java-alternatives --set /usr/lib/jvm/java-1.17.0-openjdk-amd64
   export JAVA_HOME=/usr/lib/jvm/java-17
 merge:
   script: mvn clean install