diff --git a/package-lock.json b/package-lock.json
index c92de879..55381341 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "openseadragon",
-    "version": "5.0.0",
+    "version": "5.0.1",
     "lockfileVersion": 3,
     "requires": true,
     "packages": {
         "": {
             "name": "openseadragon",
-            "version": "5.0.0",
+            "version": "5.0.1",
             "license": "BSD-3-Clause",
             "devDependencies": {
                 "eslint-plugin-compat": "^4.1.2",
diff --git a/test/helpers/test.js b/test/helpers/test.js
index eb860cbf..7e34babd 100644
--- a/test/helpers/test.js
+++ b/test/helpers/test.js
@@ -59,8 +59,8 @@
         },
 
         // ----------
-        equalsWithVariance: function (actual, expected, variance) {
-            return Math.abs(actual - expected) <= variance;
+        equalsWithVariance: function (value1, value2, variance) {
+            return Math.abs(value1 - value2) <= variance;
         },
 
         // ----------