diff --git a/yarn.lock b/yarn.lock
index 3a2c147417..7d3cabe6cb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -317,7 +317,7 @@
     bn.js "^4.11.8"
     ethereum-types "^3.1.0"
 
-"@0x/contracts-zero-ex@0xProject/gitpkg-registry#0x-contracts-zero-ex-v0.1.0-f14b6f2ba":
+"@0x/contracts-zero-ex@0xProject/gitpkg-registry#0x-contracts-zero-ex-v0.1.0-f14b6f2ba", "@0x/contracts-zero-ex@^0.1.0":
   version "0.1.0"
   resolved "https://codeload.github.com/0xProject/gitpkg-registry/tar.gz/963254db067233cdc0a7f7d377ae73b59fdcdd70"
   dependencies:
@@ -468,18 +468,6 @@
     "@0x/order-utils" "^10.2.5"
     "@0x/utils" "^5.5.0"
 
-"@0x/quote-server@^2.0.2":
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/@0x/quote-server/-/quote-server-2.0.2.tgz#60d0665c1cad378c9abb89b5491bdc55b4c8412c"
-  dependencies:
-    "@0x/json-schemas" "^5.0.7"
-    "@0x/order-utils" "^10.2.4"
-    "@0x/utils" "^5.4.1"
-    "@types/express" "^4.17.3"
-    express "^4.17.1"
-    express-async-handler "^1.1.4"
-    http-status-codes "^1.4.0"
-
 "@0x/sol-compiler@^4.0.8":
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/@0x/sol-compiler/-/sol-compiler-4.0.8.tgz#e60634423d47c4241a404e48edbdfff99098ab5f"
@@ -1004,7 +992,7 @@
     "@types/node" "*"
     "@types/range-parser" "*"
 
-"@types/express@*", "@types/express@^4.17.1", "@types/express@^4.17.3":
+"@types/express@*", "@types/express@^4.17.1":
   version "4.17.6"
   resolved "https://registry.yarnpkg.com/@types/express/-/express-4.17.6.tgz#6bce49e49570507b86ea1b07b806f04697fac45e"
   dependencies:
@@ -4490,7 +4478,7 @@ http-signature@~1.2.0:
     jsprim "^1.2.2"
     sshpk "^1.7.0"
 
-http-status-codes@^1.3.2, http-status-codes@^1.4.0:
+http-status-codes@^1.3.2:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/http-status-codes/-/http-status-codes-1.4.0.tgz#6e4c15d16ff3a9e2df03b89f3a55e1aae05fb477"