diff --git a/6.0/Containerfile b/6.0/Containerfile
index b9a19e0..93556a1 100644
--- a/6.0/Containerfile
+++ b/6.0/Containerfile
@@ -43,7 +43,7 @@ RUN echo 'gem "pg", :require => true' >> Gemfile.local
 RUN echo 'gem "puma", :require => true' >> Gemfile.local
 RUN echo 'gem "with_advisory_lock", :require => true' >> Gemfile.local
 RUN gem install  --user-install bundler
-
+RUN gem install  --user-install with_advisory_lock
 #
 #
 # redmine plugins 
diff --git a/6.0/entrypoint.sh b/6.0/entrypoint.sh
index 7fda38d..bc68ec8 100644
--- a/6.0/entrypoint.sh
+++ b/6.0/entrypoint.sh
@@ -63,8 +63,6 @@ elif [ "${DATABASE_ADAPTER}" == "mysql" ]; then
     echo -e " port: ${MYSQL_PORT}" >> config/database.yml
     echo -e " username: ${MYSQL_USER}" >> config/database.yml
     echo -e " password: ${MYSQL_PASSWORD}" >> config/database.yml
-    echo -e " variables:" >> config/database.yml
-    echo -e '  transaction_isolation: "READ-COMMITTED"' >> config/database.yml
 
 elif [ "${DATABASE_ADAPTER}" == "postgres" ]; then