Try updating jest

package.json

@@ -110,7 +110,7 @@
     "imgix-core-js": "^1.0.6",
     "ioredis": "3.1.4",
     "isomorphic-fetch": "^2.2.1",
-    "jest": "^22.1.0",
+    "jest": "^22.4.3",
     "json-stringify-pretty-compact": "^1.0.4",
     "jsonwebtoken": "^8.0.1",
     "keygrip": "^1.0.2",

yarn.lock

@@ -3554,7 +3554,7 @@ draft-js-prism@^1.0.6:
     extend "^3.0.0"
     immutable "*"
 
-"draft-js-prism@github:ngs/draft-js-prism#6edb31c3805dd1de3fb897cc27fced6bac1bafbb":
+draft-js-prism@ngs/draft-js-prism#6edb31c3805dd1de3fb897cc27fced6bac1bafbb:
   version "1.0.3"
   resolved "https://codeload.github.com/ngs/draft-js-prism/tar.gz/6edb31c3805dd1de3fb897cc27fced6bac1bafbb"
   dependencies:
@@ -6516,7 +6516,7 @@ [email protected]:
   dependencies:
     jest-cli "^20.0.4"
 
-jest@^22.1.0:
+jest@^22.4.3:
   version "22.4.3"
   resolved "https://registry.yarnpkg.com/jest/-/jest-22.4.3.tgz#2261f4b117dc46d9a4a1a673d2150958dee92f16"
   dependencies:
@@ -11122,7 +11122,7 @@ [email protected]:
   dependencies:
     indexof "0.0.1"
 
-"vm2@github:patriksimek/vm2#custom_files":
+vm2@patriksimek/vm2#custom_files:
   version "3.5.0"
   resolved "https://codeload.github.com/patriksimek/vm2/tar.gz/7e82f90ac705fc44fad044147cb0df09b4c79a57"