diff --git a/Dockerfile b/Dockerfile
index ae19d39..72aed31 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
 FROM dunglas/frankenphp:latest
 
-LABEL org.opencontainers.image.title=Ptah.sh
+LABEL org.opencontainers.image.title="Ptah.sh"
 LABEL org.opencontainers.image.description="Self-hosted, open-source, and extensible PaaS"
-LABEL org.opencontainers.image.url=https://ptah.sh
-LABEL org.opencontainers.image.source=https://github.com/ptah-sh/ptah-server
-LABEL org.opencontainers.image.licenses=FSL1.1, Apache 2.0 Future License
+LABEL org.opencontainers.image.url="https://ptah.sh"
+LABEL org.opencontainers.image.source="https://github.com/ptah-sh/ptah-server"
+LABEL org.opencontainers.image.licenses="FSL1.1, Apache 2.0 Future License"
 LABEL org.opencontainers.image.vendor="Bohdan Shulha"
 
 RUN apt-get update \