diff --git a/docgen/package.json b/docgen/package.json
index c1411aabdb2..0bbe4b4e024 100644
--- a/docgen/package.json
+++ b/docgen/package.json
@@ -28,7 +28,7 @@
     "markdown-it": "8.4.0",
     "markdown-it-anchor": "4.0.0",
     "metalsmith": "2.3.0",
-    "metalsmith-copy": "0.3.0",
+    "metalsmith-copy": "0.4.0",
     "metalsmith-headings": "0.2.0",
     "metalsmith-in-place": "3.0.1",
     "metalsmith-layouts": "1.8.1",
diff --git a/docgen/yarn.lock b/docgen/yarn.lock
index 90675efe834..01dcd2ef64c 100644
--- a/docgen/yarn.lock
+++ b/docgen/yarn.lock
@@ -4310,10 +4310,6 @@ lowercase-keys@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.0.tgz#4e3366b39e7f5457e35f1324bdf6f88d0bfc7306"
 
-lru-cache@2:
-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-2.7.3.tgz#6d4524e8b955f95d4f5b58851ce21dd72fb4e952"
-
 lru-cache@^4.0.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/lru-cache/-/lru-cache-4.1.1.tgz#622e32e82488b49279114a4f9ecf45e7cd6bba55"
@@ -4469,13 +4465,13 @@ merge@^1.1.3:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/merge/-/merge-1.2.0.tgz#7531e39d4949c281a66b8c5a6e0265e8b05894da"
 
-metalsmith-copy@0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/metalsmith-copy/-/metalsmith-copy-0.3.0.tgz#b9f2d2854642896722d98efb7e7d3b1c95f38eae"
+metalsmith-copy@0.4.0:
+  version "0.4.0"
+  resolved "https://registry.yarnpkg.com/metalsmith-copy/-/metalsmith-copy-0.4.0.tgz#ead35307ae6224d33d2c12a51d28ec1943218cd3"
   dependencies:
     debug "^0.8.1"
     lodash "^2.4.1"
-    minimatch "^0.2.14"
+    minimatch "^3.0.2"
 
 metalsmith-engine-jstransformer@^0.1.2:
   version "0.1.2"
@@ -4646,13 +4642,6 @@ minimatch@3.0.3:
   dependencies:
     brace-expansion "^1.0.0"
 
-minimatch@^0.2.14:
-  version "0.2.14"
-  resolved "https://registry.yarnpkg.com/minimatch/-/minimatch-0.2.14.tgz#c74e780574f63c6f9a090e90efbe6ef53a6a756a"
-  dependencies:
-    lru-cache "2"
-    sigmund "~1.0.0"
-
 minimist@0.0.8:
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
@@ -6321,10 +6310,6 @@ shelljs@^0.7.5:
     interpret "^1.0.0"
     rechoir "^0.6.2"
 
-sigmund@~1.0.0:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/sigmund/-/sigmund-1.0.1.tgz#3ff21f198cad2175f9f3b781853fd94d0d19b590"
-
 signal-exit@^3.0.0:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/signal-exit/-/signal-exit-3.0.2.tgz#b5fdc08f1287ea1178628e415e25132b73646c6d"