diff --git a/package.json b/package.json
index ccb63380a..953e3f606 100755
--- a/package.json
+++ b/package.json
@@ -85,7 +85,8 @@
     "ember-cli-babel": "^7.26.8",
     "jsonpointer": "5.0.0",
     "json-schema": "^0.4.0",
-    "follow-redirects": "^1.14.7"
+    "follow-redirects": "^1.14.7",
+    "shelljs": "^0.8.5"
   },
   "config": {
     "commitizen": {
diff --git a/yarn.lock b/yarn.lock
index 71c3884be..1acc76f73 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -21968,15 +21968,10 @@ shell-quote@1.7.2, shell-quote@^1.6.1:
   resolved "https://registry.yarnpkg.com/shell-quote/-/shell-quote-1.7.2.tgz#67a7d02c76c9da24f99d20808fcaded0e0e04be2"
   integrity sha512-mRz/m/JVscCrkMyPqHc/bczi3OQHkLTqXHEFu0zDhK/qfv3UcOA4SVmRCLmos4bhjr9ekVQubj/R7waKapmiQg==
 
-shelljs@^0.6.0:
-  version "0.6.1"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.6.1.tgz#ec6211bed1920442088fe0f70b2837232ed2c8a8"
-  integrity sha1-7GIRvtGSBEIIj+D3Cyg3Iy7SyKg=
-
-shelljs@^0.8.4:
-  version "0.8.4"
-  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.4.tgz#de7684feeb767f8716b326078a8a00875890e3c2"
-  integrity sha512-7gk3UZ9kOfPLIAbslLzyWeGiEqx9e3rxwZM0KE6EL8GlGwjym9Mrlx5/p33bWTu9YG6vcS4MBxYZDHYr5lr8BQ==
+shelljs@^0.6.0, shelljs@^0.8.4, shelljs@^0.8.5:
+  version "0.8.5"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.8.5.tgz#de055408d8361bed66c669d2f000538ced8ee20c"
+  integrity sha512-TiwcRcrkhHvbrZbnRcFYMLl30Dfov3HKqzp5tO5b4pt6G/SezKcYhmDg15zXVBswHmctSAQKznqNW2LO5tTDow==
   dependencies:
     glob "^7.0.0"
     interpret "^1.0.0"