diff --git a/package-lock.json b/package-lock.json
index d3d544a..44327a3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1591,14 +1591,14 @@
       }
     },
     "@open-wc/testing": {
-      "version": "2.5.17",
-      "resolved": "https://registry.npmjs.org/@open-wc/testing/-/testing-2.5.17.tgz",
-      "integrity": "sha512-ozXsOhmf1+mbtKJdbbjPAnfi4HPAkeQYv2zon6rmwv0i0RNZ9S0LkT8wgsn8wpn2+dvckMvks9g/mqXvciaf2g==",
+      "version": "2.5.18",
+      "resolved": "https://registry.npmjs.org/@open-wc/testing/-/testing-2.5.18.tgz",
+      "integrity": "sha512-poFIaGEsHseNEbAE/pGjzZGbSksxqsL4CRr+MSPUEotzhbVa3BzA3JzPHfn3FD1zVGlBcNEU0kFa0jj/Goc52w==",
       "dev": true,
       "requires": {
         "@open-wc/chai-dom-equals": "^0.12.36",
         "@open-wc/semantic-dom-diff": "^0.17.9",
-        "@open-wc/testing-helpers": "^1.8.2",
+        "@open-wc/testing-helpers": "^1.8.3",
         "@types/chai": "^4.2.11",
         "@types/chai-dom": "^0.0.9",
         "@types/mocha": "^5.0.0",
@@ -1611,9 +1611,9 @@
       }
     },
     "@open-wc/testing-helpers": {
-      "version": "1.8.2",
-      "resolved": "https://registry.npmjs.org/@open-wc/testing-helpers/-/testing-helpers-1.8.2.tgz",
-      "integrity": "sha512-zxfZZOS4/30sceo7RHGHUxhxSe2F+NUsKYPK7EIATSJbQ1j9/3HIR+9PqYnZcRI3DT3CdPKQka/60dUJPH1kiQ==",
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/@open-wc/testing-helpers/-/testing-helpers-1.8.3.tgz",
+      "integrity": "sha512-VLtX4cQ6dNMUMSbe3fsWZ0Laqo2cBX3titILczJ9qmXJeeB7MTXsZNck9B92a2aHz9w3C9FswQ0f/krqf/E8ng==",
       "dev": true,
       "requires": {
         "@open-wc/scoped-elements": "^1.1.1",
diff --git a/package.json b/package.json
index 2e0257f..eb5eea8 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "@open-wc/testing-karma": "^3.4.1",
     "webpack-merge": "^4.2.2",
     "@open-wc/testing-karma-bs": "^1.3.77",
-    "@open-wc/testing": "^2.5.17",
+    "@open-wc/testing": "^2.5.18",
     "@open-wc/demoing-storybook": "^2.3.5",
     "@open-wc/building-rollup": "^1.3.1",
     "rimraf": "^3.0.2",