diff --git a/deploy.sh b/deploy.sh
index b077cc9..f0be62e 100755
--- a/deploy.sh
+++ b/deploy.sh
@@ -78,19 +78,19 @@ if [ "$GREENFIELD" = true ]; then
         fi
     fi
 
-    # Generate Caddyfile
-    sed -e "s/{DOMAIN}/$DOMAIN/g" -e "s/{TLS_EMAIL}/${TLS_EMAIL:-admin@$DOMAIN}/g" \
+    # Generate Caddyfile (using | delimiter to avoid conflicts with / and @)
+    sed -e "s|{DOMAIN}|$DOMAIN|g" -e "s|{TLS_EMAIL}|${TLS_EMAIL:-admin@$DOMAIN}|g" \
         "$SCRIPT_DIR/config/caddy/Caddyfile" > "$TARGET_DIR/config/caddy/Caddyfile"
 
     # Generate Authelia config
-    sed -e "s/{DOMAIN}/$DOMAIN/g" \
-        -e "s/{JWT_SECRET}/$JWT_SECRET/g" \
-        -e "s/{SESSION_SECRET}/$SESSION_SECRET/g" \
+    sed -e "s|{DOMAIN}|$DOMAIN|g" \
+        -e "s|{JWT_SECRET}|$JWT_SECRET|g" \
+        -e "s|{SESSION_SECRET}|$SESSION_SECRET|g" \
         "$SCRIPT_DIR/config/authelia/configuration.yml" > "$TARGET_DIR/config/authelia/configuration.yml"
 
     # Generate users database
-    sed -e "s/{ADMIN_PASSWORD_HASH}/$ADMIN_PASSWORD_HASH/g" \
-        -e "s/{TLS_EMAIL}/${TLS_EMAIL:-admin@$DOMAIN}/g" \
+    sed -e "s|{ADMIN_PASSWORD_HASH}|$ADMIN_PASSWORD_HASH|g" \
+        -e "s|{TLS_EMAIL}|${TLS_EMAIL:-admin@$DOMAIN}|g" \
         "$SCRIPT_DIR/config/authelia/users_database.yml" > "$TARGET_DIR/config/authelia/users_database.yml"
 
     # Copy compose files