Pin dependencies

package.json

@@ -30,8 +30,8 @@
     "@babel/cli": "7.10.5",
     "@babel/core": "7.11.1",
     "@babel/preset-env": "7.11.0",
-    "eslint": "^7.7.0",
-    "jest": "^26.4.1",
+    "eslint": "7.7.0",
+    "jest": "26.4.1",
     "typescript": "3.9.7"
   },
   "browserslist": "> 0.25%, not dead"

yarn.lock

@@ -2266,7 +2266,7 @@ eslint-visitor-keys@^1.0.0, eslint-visitor-keys@^1.1.0, eslint-visitor-keys@^1.3
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz#30ebd1ef7c2fdff01c3a4f151044af25fab0523e"
   integrity sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==
 
-eslint@^7.7.0:
+eslint@7.7.0:
   version "7.7.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.7.0.tgz#18beba51411927c4b64da0a8ceadefe4030d6073"
   integrity sha512-1KUxLzos0ZVsyL81PnRN335nDtQ8/vZUD6uMtWbF+5zDtjKcsklIi78XoE0MVL93QvWTu+E5y44VyyCsOMBrIg==
@@ -3496,7 +3496,7 @@ jest-worker@^26.3.0:
     merge-stream "^2.0.0"
     supports-color "^7.0.0"
 
-jest@^26.4.1:
+jest@26.4.1:
   version "26.4.1"
   resolved "https://registry.yarnpkg.com/jest/-/jest-26.4.1.tgz#4c187999c9af761eba862d720f66f43e80b8d12f"
   integrity sha512-q+az+ZXFOTxTlD6BRIMcZC+a33O9lsryV4Wo9gU4D/AI+Y6KKgVRCmyzpc4H2gWv0rn45lACukmMS2uSB7e1LA==
@@ -5162,10 +5162,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2.tgz#7ea7c88777c723c681e33bf7988be5d008d05ac2"
-  integrity sha512-e4ERvRV2wb+rRZ/IQeb3jm2VxBsirQLpQhdxplZ2MEzGvDkkMmPglecnNDfSUBivMjP93vRbngYYDQqQ/78bcQ==
+typescript@3.9.7:
+  version "3.9.7"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
+  integrity sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==
 
 unicode-canonical-property-names-ecmascript@^1.0.4:
   version "1.0.4"