diff --git a/src/babel/transformation/file/logger.js b/src/babel/transformation/file/logger.js
index f386158554..f0ce002374 100644
--- a/src/babel/transformation/file/logger.js
+++ b/src/babel/transformation/file/logger.js
@@ -1,3 +1,4 @@
+import type File from "./index";
 import buildDebug from "debug/node";
 
 var verboseDebug = buildDebug("babel:verbose");
diff --git a/src/babel/transformation/helpers/replace-supers.js b/src/babel/transformation/helpers/replace-supers.js
index 45c77a5512..18ae6659d2 100644
--- a/src/babel/transformation/helpers/replace-supers.js
+++ b/src/babel/transformation/helpers/replace-supers.js
@@ -1,3 +1,4 @@
+import type NodePath from "../../traversal/path";
 import * as messages from "../../messages";
 import * as t from "../../types";
 
diff --git a/src/babel/transformation/transformer-pass.js b/src/babel/transformation/transformer-pass.js
index 4446c135a6..615c56ccd1 100644
--- a/src/babel/transformation/transformer-pass.js
+++ b/src/babel/transformation/transformer-pass.js
@@ -1,4 +1,6 @@
+import type Transformer from "./transformer";
 import traverse from "../traversal";
+import type File from "./file";
 
 /**
  * This class is responsible for traversing over the provided `File`s
diff --git a/src/babel/transformation/transformers/es6/block-scoping.js b/src/babel/transformation/transformers/es6/block-scoping.js
index be521c5e9a..558e160039 100644
--- a/src/babel/transformation/transformers/es6/block-scoping.js
+++ b/src/babel/transformation/transformers/es6/block-scoping.js
@@ -1,3 +1,6 @@
+import type NodePath from "../../../traversal/path";
+import type Scope from "../../../traversal/scope";
+import type File from "../../file";
 import traverse from "../../../traversal";
 import object from "../../../helpers/object";
 import * as util from  "../../../util";
diff --git a/src/babel/transformation/transformers/es6/classes.js b/src/babel/transformation/transformers/es6/classes.js
index 375e9eb99c..f2bd8d1759 100644
--- a/src/babel/transformation/transformers/es6/classes.js
+++ b/src/babel/transformation/transformers/es6/classes.js
@@ -1,3 +1,5 @@
+import type NodePath from "../../../traversal/path";
+import type File from "../../file";
 import memoiseDecorators from "../../helpers/memoise-decorators";
 import ReplaceSupers from "../../helpers/replace-supers";
 import * as nameMethod from "../../helpers/name-method";
diff --git a/src/babel/traversal/path/index.js b/src/babel/traversal/path/index.js
index 601cbb1832..25756d071f 100644
--- a/src/babel/traversal/path/index.js
+++ b/src/babel/traversal/path/index.js
@@ -1,3 +1,4 @@
+import type File from "../../transformation/file";
 import * as virtualTypes from "./lib/virtual-types";
 import traverse from "../index";
 import assign from "lodash/object/assign";
diff --git a/src/babel/traversal/path/resolution.js b/src/babel/traversal/path/resolution.js
index 97500f0f97..7856a2abbf 100644
--- a/src/babel/traversal/path/resolution.js
+++ b/src/babel/traversal/path/resolution.js
@@ -1,3 +1,4 @@
+import type NodePath from "./index";
 import * as t from "../../types";
 
 const BOOLEAN_BINARY_OPERATORS = ["==", "===", "!=", "!==", ">", "<", ">=", "<=", "in"];
diff --git a/src/babel/traversal/scope/index.js b/src/babel/traversal/scope/index.js
index f1bec899c8..ff7efbec24 100644
--- a/src/babel/traversal/scope/index.js
+++ b/src/babel/traversal/scope/index.js
@@ -1,4 +1,6 @@
 import includes from "lodash/collection/includes";
+import type NodePath from "../path";
+import type File from "../../transformation/file";
 import traverse from "../index";
 import defaults from "lodash/object/defaults";
 import * as messages from "../../messages";
diff --git a/src/babel/types/converters.js b/src/babel/types/converters.js
index 0034ccdf03..2932e49158 100644
--- a/src/babel/types/converters.js
+++ b/src/babel/types/converters.js
@@ -3,6 +3,7 @@ import isNumber from "lodash/lang/isNumber";
 import isRegExp from "lodash/lang/isRegExp";
 import isString from "lodash/lang/isString";
 import traverse from "../traversal";
+import type Scope from "../traversal/scope";
 import * as t from "./index";
 
 /**