diff --git a/package.json b/package.json
index d0c0752..872aeb0 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "author": "ssube",
   "license": "MIT",
   "devDependencies": {
-    "@istanbuljs/nyc-config-typescript": "^0.1.3",
+    "@istanbuljs/nyc-config-typescript": "0.1.3",
     "@types/bunyan": "1.8.6",
     "@types/chai": "4.2.0",
     "@types/deep-diff": "1.0.0",
@@ -51,7 +51,7 @@
     "lodash": "4.17.15",
     "mocha": "6.2.0",
     "noicejs": "2.5.2",
-    "nyc": "^14.1.1",
+    "nyc": "14.1.1",
     "rollup": "1.20.3",
     "rollup-plugin-commonjs": "10.1.0",
     "rollup-plugin-json": "4.0.0",
diff --git a/yarn.lock b/yarn.lock
index b2865a9..9c30b37 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -97,7 +97,7 @@
     lodash "^4.17.13"
     to-fast-properties "^2.0.0"
 
-"@istanbuljs/nyc-config-typescript@^0.1.3":
+"@istanbuljs/nyc-config-typescript@0.1.3":
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/@istanbuljs/nyc-config-typescript/-/nyc-config-typescript-0.1.3.tgz#944d15b3ebdb71f963a628daffaa25ade981bb86"
   integrity sha512-EzRFg92bRSD1W/zeuNkeGwph0nkWf+pP2l/lYW4/5hav7RjKKBN5kV1Ix7Tvi0CMu3pC4Wi/U7rNisiJMR3ORg==
@@ -1906,7 +1906,7 @@ number-is-nan@^1.0.0:
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
   integrity sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0=
 
-nyc@^14.1.1:
+nyc@14.1.1:
   version "14.1.1"
   resolved "https://registry.yarnpkg.com/nyc/-/nyc-14.1.1.tgz#151d64a6a9f9f5908a1b73233931e4a0a3075eeb"
   integrity sha512-OI0vm6ZGUnoGZv/tLdZ2esSVzDwUC88SNs+6JoSOMVxA+gKMB8Tk7jBwgemLx4O40lhhvZCVw1C+OYLOBOPXWw==