Release 1.8.1

Author: ljwagerfield

package.json

@@ -105,7 +105,7 @@
     "prettier": "2.1.2",
     "react": "16.13.1",
     "react-dom": "16.13.1",
-    "resize-observer-polyfill": "^1.5.1",
+    "resize-observer-polyfill": "1.5.1",
     "ts-jest": "27.1.3",
     "ts-loader": "8.0.11",
     "tsc-alias": "1.2.10",