diff --git a/Jenkinsfile.pjt b/Jenkinsfile.pjt
index ad64445..fe8134c 100644
--- a/Jenkinsfile.pjt
+++ b/Jenkinsfile.pjt
@@ -234,8 +234,6 @@ pipeline {
           sh '''
             set -e
 
-            echo "[1/2] docker registry login"
-            echo "$DOCKER_PASS" | docker login ${REGISTRY_HOST} -u "$DOCKER_USER" --password-stdin
 
             TAGS_TO_DELETE=$(curl -s -u "$DOCKER_USER:$DOCKER_PASS" https://${REGISTRY_HOST}/v2/${IMAGE_REPO}/tags/list | jq -r '.tags[]' | grep -E '^[0-9]+' | sort -t- -k1,1n | head -n -5)
 
@@ -245,7 +243,6 @@ pipeline {
               echo "[DRY] $TAG -> $DIGEST"
             done
 
-            docker logout ${REGISTRY_HOST}
           '''
         }
       }