diff --git a/package.json b/package.json
index c114b9fe2..562ecc6ca 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "lodash": "^4.17.15",
     "mint-ui": "^2.2.13",
     "node-sass": "^4.12.0",
-    "ol": "^7.2.2",
+    "ol": "^6.9.0",
     "portfinder": "^1.0.21",
     "proj4": "^2.8.0",
     "qs": "^6.7.0",