diff --git a/NEWS.md b/NEWS.md
index 5b70378c..6312c5bb 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -3,12 +3,16 @@
 ## 4.0.2
 Released 2017-mm-dd
 
+Announcements:
+ - Upgrades windshaft to [4.0.1](https://github.com/CartoDB/windshaft/releases/tag/4.0.1).
+
 
 ## 4.0.1
 Released 2017-10-18
 
 Announcements:
  - Upgrades camshaft to [0.59.4](https://github.com/CartoDB/camshaft/releases/tag/0.59.4).
+ - Upgrades windshaft to [4.0.0](https://github.com/CartoDB/windshaft/releases/tag/4.0.0).
  - Split and move `req2params` method to multiple middlewares.
  - Use express error handler middleware to respond in case of something went wrong.
  - Use `res.locals` object to share info between middlewares and leave `req.params` as an object containing properties mapped to the named route params.
diff --git a/package.json b/package.json
index f4c31609..8e4c1d84 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "step-profiler": "~0.3.0",
     "turbo-carto": "0.20.1",
     "underscore": "~1.6.0",
-    "windshaft": "~4.0.0",
+    "windshaft": "4.0.1",
     "yargs": "~5.0.0"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index ba46c6f4..7b5394aa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-abaculus@cartodb/abaculus#2.0.3-cdb1:
+"abaculus@github:cartodb/abaculus#2.0.3-cdb1":
   version "2.0.3-cdb1"
   resolved "https://codeload.github.com/cartodb/abaculus/tar.gz/f5f34e1c80cdd8d49edd1d6fe3b2220ab2e23aaf"
   dependencies:
@@ -222,7 +222,7 @@ camshaft@0.59.4:
     dot "^1.0.3"
     request "^2.69.0"
 
-canvas@cartodb/node-canvas#1.6.2-cdb2:
+"canvas@github:cartodb/node-canvas#1.6.2-cdb2":
   version "1.6.2-cdb2"
   resolved "https://codeload.github.com/cartodb/node-canvas/tar.gz/8acf04557005c633f9e68524488a2657c04f3766"
   dependencies:
@@ -248,7 +248,7 @@ carto@CartoDB/carto#0.15.1-cdb1:
     optimist "~0.6.0"
     underscore "~1.6.0"
 
-carto@cartodb/carto#0.15.1-cdb3:
+"carto@github:cartodb/carto#0.15.1-cdb3":
   version "0.15.1-cdb3"
   resolved "https://codeload.github.com/cartodb/carto/tar.gz/945f5efb74fd1af1f5e1f69f409f9567f94fb5a7"
   dependencies:
@@ -746,7 +746,7 @@ gdal@~0.9.2:
     nan "~2.6.2"
     node-pre-gyp "~0.6.36"
 
-generic-pool@2.4.3:
+generic-pool@2.4.3, generic-pool@~2.4.0, generic-pool@~2.4.1:
   version "2.4.3"
   resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.4.3.tgz#780c36f69dfad05a5a045dd37be7adca11a4f6ff"
 
@@ -758,10 +758,6 @@ generic-pool@~2.2.0, generic-pool@~2.2.1:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.2.2.tgz#7a89f491d575b42f9f069a0e8e2c6dbaa3c241be"
 
-generic-pool@~2.4.0, generic-pool@~2.4.1:
-  version "2.4.6"
-  resolved "https://registry.yarnpkg.com/generic-pool/-/generic-pool-2.4.6.tgz#f1b55e572167dba2fe75d5aa91ebb1e9f72642d7"
-
 get-caller-file@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/get-caller-file/-/get-caller-file-1.0.2.tgz#f702e63127e7e231c160a80c1554acb70d5047e5"
@@ -1453,14 +1449,10 @@ oauth-sign@~0.8.1, oauth-sign@~0.8.2:
   version "0.8.2"
   resolved "https://registry.yarnpkg.com/oauth-sign/-/oauth-sign-0.8.2.tgz#46a6ab7f0aead8deae9ec0565780b7d4efeb9d43"
 
-object-assign@4.1.0:
+object-assign@4.1.0, object-assign@^4.1.0:
   version "4.1.0"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.0.tgz#7a3b3d0e98063d43f4c03f2e8ae6cd51a86883a0"
 
-object-assign@^4.1.0:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
-
 object-keys@~0.4.0:
   version "0.4.0"
   resolved "https://registry.yarnpkg.com/object-keys/-/object-keys-0.4.0.tgz#28a6aae7428dd2c3a92f3d95f21335dd204e0336"
@@ -2153,7 +2145,7 @@ through@2:
   version "2.3.8"
   resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
 
-tilelive-bridge@cartodb/tilelive-bridge#2.3.1-cdb4:
+"tilelive-bridge@github:cartodb/tilelive-bridge#2.3.1-cdb4":
   version "2.3.1-cdb4"
   resolved "https://codeload.github.com/cartodb/tilelive-bridge/tar.gz/faa2b638da2d119b78281575d40255cb523f6ca6"
   dependencies:
@@ -2161,7 +2153,7 @@ tilelive-bridge@cartodb/tilelive-bridge#2.3.1-cdb4:
     mapnik-pool "~0.1.3"
     sphericalmercator "1.0.x"
 
-tilelive-mapnik@cartodb/tilelive-mapnik#0.6.18-cdb3:
+"tilelive-mapnik@github:cartodb/tilelive-mapnik#0.6.18-cdb3":
   version "0.6.18-cdb3"
   resolved "https://codeload.github.com/cartodb/tilelive-mapnik/tar.gz/23bd1c31dd57d0b76c86b9f1eaf62462b3c17d01"
   dependencies:
@@ -2322,9 +2314,9 @@ window-size@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/window-size/-/window-size-0.2.0.tgz#b4315bb4214a3d7058ebeee892e13fa24d98b075"
 
-windshaft@~4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/windshaft/-/windshaft-4.0.0.tgz#b28ffb3775db3a4f2578e79d73c9b854a1ae5854"
+windshaft@4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/windshaft/-/windshaft-4.0.1.tgz#16230a0b5b28f08a443491339c37637e3caefa52"
   dependencies:
     abaculus cartodb/abaculus#2.0.3-cdb1
     canvas cartodb/node-canvas#1.6.2-cdb2