diff --git a/types/bootstrap/index.d.ts b/types/bootstrap/index.d.ts
index fbd804e3d0..88bcc66af8 100755
--- a/types/bootstrap/index.d.ts
+++ b/types/bootstrap/index.d.ts
@@ -4,9 +4,10 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.3
 
-/// <reference types="popper.js" />
 /// <reference types="jquery"/>
 
+import * as Popper from "popper.js";
+
 export as namespace Bootstrap;
 
 // --------------------------------------------------------------------------
@@ -163,7 +164,7 @@ export interface ScrollspyOption {
      *
      * @default "auto"
      */
-    method?: "auto" | "offset" | "position";
+    method?: "auto" | "offset" | "position";
 
     /**
      * Pixels to offset from top when calculating position of scroll.
diff --git a/types/bootstrap/package.json b/types/bootstrap/package.json
index 7f11c30706..af84860ef1 100644
--- a/types/bootstrap/package.json
+++ b/types/bootstrap/package.json
@@ -1,6 +1,6 @@
 {
     "private": true,
     "dependencies": {
-        "popper.js": "^1.12.9"
+        "popper.js": "^1.14.1"
     }
 }
\ No newline at end of file