diff --git a/packages/l7/src/version.ts b/packages/l7/src/version.ts
index d2a3e9a509..a120a8b3c9 100644
--- a/packages/l7/src/version.ts
+++ b/packages/l7/src/version.ts
@@ -1,3 +1,2 @@
-
 const version = '2.8.40';
 export { version };
diff --git a/packages/layers/package.json b/packages/layers/package.json
index b621fd4c00..99ad2863a4 100644
--- a/packages/layers/package.json
+++ b/packages/layers/package.json
@@ -49,7 +49,7 @@
   "devDependencies": {
     "@types/d3-array": "^2.0.0",
     "@types/d3-color": "^1.2.2",
-    "@types/d3-interpolate": "2.0.2",
+    "@types/d3-interpolate": "1.4.0",
     "@types/d3-scale": "^2.1.1",
     "@types/earcut": "^2.1.0",
     "@types/gl-matrix": "^2.4.5",