diff --git a/Dockerfile b/Dockerfile
index 735fe35..c25c535 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,9 +9,5 @@ RUN DATABASE_USER=$(echo $DATABASE_URL | cut -d ':' -f 2 | cut -d '/' -f 3) \
     && DATABASE_HOST=$(echo $DATABASE_URL | cut -d '@' -f 2 | cut -d ':' -f 1) \
     && DATABASE_PORT=$(echo $DATABASE_URL | cut -d ':' -f 4 | cut -d '/' -f 1) \
     && DATABASE_NAME=$(echo $DATABASE_URL | cut -d '/' -f 4) \
-    && sed -i "s|HOST *=.*|HOST     = $DATABASE_HOST|" /var/lib/gitea/custom/conf/app.ini \
-    && sed -i "s|NAME *=.*|NAME     = $DATABASE_NAME|" /var/lib/gitea/custom/conf/app.ini \
-    && sed -i "s|USER *=.*|USER     = $DATABASE_USER|" /var/lib/gitea/custom/conf/app.ini \
-    && sed -i "s|PASSWD *=.*|PASSWD   = $DATABASE_PASSWORD|" /var/lib/gitea/custom/conf/app.ini \
-    && sed -i "s|SSL_MODE *=.*|SSL_MODE = require|" /var/lib/gitea/custom/conf/app.ini
+    && printf "[database]\nDB_TYPE  = postgres\nHOST     = $DATABASE_HOST\nNAME     = $DATABASE_NAME\nUSER     = $DATABASE_USER\nPASSWD   = $DATABASE_PASSWORD\nSSL_MODE = require\n" > /var/lib/gitea/custom/conf/app.ini