diff --git a/package.json b/package.json
index e4b8d4a..e82169f 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "@types/chai-as-promised": "7.1.2",
     "@types/lodash": "4.14.149",
     "@types/mocha": "7.0.2",
-    "@types/mock-fs": "^4.10.0",
+    "@types/mock-fs": "4.10.0",
     "@types/node": "13.9.5",
     "@types/sinon-chai": "3.2.3",
     "@types/source-map-support": "0.5.1",
@@ -46,7 +46,7 @@
     "eslint-plugin-sonarjs": "0.5.0",
     "lodash": "4.17.15",
     "mocha": "7.1.1",
-    "mock-fs": "^4.11.0",
+    "mock-fs": "4.11.0",
     "noicejs": "3.0.1",
     "nyc": "15.0.0",
     "rollup": "2.3.1",
diff --git a/yarn.lock b/yarn.lock
index f4f7f79..276db99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -383,7 +383,7 @@
   resolved "https://artifacts.apextoaster.com/repository/group-npm/@types/mocha/-/mocha-7.0.2.tgz#b17f16cf933597e10d6d78eae3251e692ce8b0ce"
   integrity sha512-ZvO2tAcjmMi8V/5Z3JsyofMe3hasRcaw88cto5etSVMwVQfeivGAlEYmaQgceUSVYFofVjT+ioHsATjdWcFt1w==
 
-"@types/mock-fs@^4.10.0":
+"@types/mock-fs@4.10.0":
   version "4.10.0"
   resolved "https://artifacts.apextoaster.com/repository/group-npm/@types/mock-fs/-/mock-fs-4.10.0.tgz#460061b186993d76856f669d5317cda8a007c24b"
   integrity sha512-FQ5alSzmHMmliqcL36JqIA4Yyn9jyJKvRSGV3mvPh108VFatX7naJDzSG4fnFQNZFq9dIx0Dzoe6ddflMB2Xkg==
@@ -2574,7 +2574,7 @@ mocha@7.1.1:
     yargs-parser "13.1.2"
     yargs-unparser "1.6.0"
 
-mock-fs@^4.11.0:
+mock-fs@4.11.0:
   version "4.11.0"
   resolved "https://artifacts.apextoaster.com/repository/group-npm/mock-fs/-/mock-fs-4.11.0.tgz#0828107e4b843a6ba855ecebfe3c6e073b69db92"
   integrity sha512-Yp4o3/ZA15wsXqJTT+R+9w2AYIkD1i80Lds47wDbuUhOvQvm+O2EfjFZSz0pMgZZSPHRhGxgcd2+GL4+jZMtdw==