diff --git a/Dockerfile b/Dockerfile
index e4525882..eee21f1a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -37,6 +37,7 @@ RUN rm -rf /opt/chronos/include
 RUN rm -rf /opt/chronos/share/man
 RUN rm -f /opt/chronos/bin/thrift
 RUN rm -f /opt/chronos/bin/curl-config
+RUN chmod 0755 /opt/chronos/bin/chronos-entry
 
 CMD "/opt/chronos/bin/chronos-entry"
 
diff --git a/api/Dockerfile b/api/Dockerfile
index f380f850..4f838c4d 100644
--- a/api/Dockerfile
+++ b/api/Dockerfile
@@ -15,6 +15,8 @@ RUN mv "$PHP_INI_DIR/php.ini-development" "$PHP_INI_DIR/php.ini"
 COPY ./docker/msmtprc /etc/msmtprc
 COPY ./docker/api-entry /usr/local/bin/
 
+RUN chmod 0755 /usr/local/bin/api-entry
+
 COPY ./ /var/www/html/
 
 RUN rm -rf /var/www/html/docker
diff --git a/frontend/.dockerignore b/frontend/.dockerignore
new file mode 100644
index 00000000..7dee514f
--- /dev/null
+++ b/frontend/.dockerignore
@@ -0,0 +1,7 @@
+.DS_Store
+.vscode
+CMakeCache.txt
+CMakeFiles
+/build
+/node_modules
+/src/utils/Config.js
diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index a711951f..da38731a 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -9,7 +9,7 @@ COPY ./ /src/cron-job.org/frontend
 COPY ./docker/Config.js /src/cron-job.org/frontend/src/utils/
 COPY ./docker/update-frontend-config /usr/local/bin/
 
-RUN /usr/local/bin/update-frontend-config
+RUN chmod 0755 /usr/local/bin/update-frontend-config && /usr/local/bin/update-frontend-config
 
 WORKDIR /src/cron-job.org/frontend
 RUN npm ci && npm run build