diff --git a/yarn.lock b/yarn.lock
index 69c7314..4195d89 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -53,8 +53,8 @@ ajv@^4.9.1:
     json-stable-stringify "^1.0.1"
 
 ajv@^5.1.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.0.tgz#eb2840746e9dc48bd5e063a36e3fd400c5eab5a9"
+  version "5.5.1"
+  resolved "https://registry.yarnpkg.com/ajv/-/ajv-5.5.1.tgz#b38bb8876d9e86bee994956a04e721e88b248eb2"
   dependencies:
     co "^4.6.0"
     fast-deep-equal "^1.0.0"
@@ -572,8 +572,8 @@ combined-stream@^1.0.5, combined-stream@~1.0.5:
     delayed-stream "~1.0.0"
 
 commander@^2.9.0:
-  version "2.12.1"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.1.tgz#468635c4168d06145b9323356d1da84d14ac4a7a"
+  version "2.12.2"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.12.2.tgz#0f5946c427ed9ec0d91a46bb9def53e54650e555"
 
 concat-map@0.0.1:
   version "0.0.1"
@@ -887,10 +887,14 @@ extglob@^0.3.1:
   dependencies:
     is-extglob "^1.0.0"
 
-extsprintf@1.3.0, extsprintf@^1.2.0:
+extsprintf@1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.3.0.tgz#96918440e3041a7a414f8c52e3c574eb3c3e1e05"
 
+extsprintf@^1.2.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/extsprintf/-/extsprintf-1.4.0.tgz#e2689f8f356fad62cca65a3a91c5df5f9551692f"
+
 fast-deep-equal@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz#96256a3bc975595eb36d82e9929d060d893439ff"
@@ -1986,8 +1990,8 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
 
 nock@^9.0.13:
-  version "9.1.3"
-  resolved "https://registry.yarnpkg.com/nock/-/nock-9.1.3.tgz#1ab95a973a876c9ae2a844241844e29dbb5a1d89"
+  version "9.1.4"
+  resolved "https://registry.yarnpkg.com/nock/-/nock-9.1.4.tgz#5cdda89c5effaed0f448486f0135bf7b1e7bf1dc"
   dependencies:
     chai ">=1.9.2 <4.0.0"
     debug "^2.2.0"
@@ -2875,8 +2879,8 @@ tsutils@^1.4.0:
   resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-1.9.1.tgz#b9f9ab44e55af9681831d5f28d0aeeaf5c750cb0"
 
 tsutils@^2.12.0, tsutils@^2.12.1, tsutils@^2.8.0:
-  version "2.12.2"
-  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.12.2.tgz#ad58a4865d17ec3ddb6631b6ca53be14a5656ff3"
+  version "2.13.0"
+  resolved "https://registry.yarnpkg.com/tsutils/-/tsutils-2.13.0.tgz#0f52b6aabbc4216e72796b66db028c6cf173e144"
   dependencies:
     tslib "^1.7.1"