diff --git a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
index f7bb69163..7d799784b 100644
--- a/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/dynamic-http-metadata-provider.schema.json
@@ -329,7 +329,7 @@
                     "description": "tooltip.proxy-host"
                 },
                 "proxyPort": {
-                    "type": "integer",
+                    "type": "string",
                     "title": "label.proxy-port",
                     "description": "tooltip.proxy-port"
                 },
diff --git a/backend/src/main/resources/filebacked-http-metadata-provider.schema.json b/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
index ab766c1a5..655ff5e0d 100644
--- a/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
+++ b/backend/src/main/resources/filebacked-http-metadata-provider.schema.json
@@ -188,7 +188,7 @@
                     "description": "tooltip.proxy-host"
                 },
                 "proxyPort": {
-                    "type": "integer",
+                    "type": "string",
                     "title": "label.proxy-port",
                     "description": "tooltip.proxy-port"
                 },
diff --git a/ui/public/assets/schema/provider/filebacked-http.schema.json b/ui/public/assets/schema/provider/filebacked-http.schema.json
index c06d7a5f3..a85d1e400 100644
--- a/ui/public/assets/schema/provider/filebacked-http.schema.json
+++ b/ui/public/assets/schema/provider/filebacked-http.schema.json
@@ -188,7 +188,7 @@
                     "description": "tooltip.proxy-host"
                 },
                 "proxyPort": {
-                    "type": "integer",
+                    "type": "string",
                     "title": "label.proxy-port",
                     "description": "tooltip.proxy-port"
                 },