diff --git a/package.json b/package.json
index d89a6d21..97f7d761 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   "devDependencies": {
     "@oclif/plugin-command-snapshot": "^5.2.4",
     "@oclif/test": "^4",
-    "@salesforce/cli-plugins-testkit": "^5.3.16",
+    "@salesforce/cli-plugins-testkit": "^5.3.18",
     "@salesforce/dev-scripts": "^10.2.2",
     "@salesforce/plugin-command-reference": "^3.1.8",
     "@salesforce/plugin-deploy-retrieve": "^3.9.9",
diff --git a/yarn.lock b/yarn.lock
index 3ac1ae63..6262e1a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1426,12 +1426,12 @@
     istanbul-lib-report "^3.0.1"
     istanbul-reports "^3.1.7"
 
-"@salesforce/cli-plugins-testkit@^5.3.16":
-  version "5.3.16"
-  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.16.tgz#903aeb6b00fbce627652e1f6dc1f5f795386ad55"
-  integrity sha512-Qzhd9dIUlAYPGdAJGmY2GuyMI6HkXPoJHZtumIg436VjWFnZchXJ/O7wipEk2zsqa8RfkZNJyollWd41wxTnHA==
+"@salesforce/cli-plugins-testkit@^5.3.18":
+  version "5.3.18"
+  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.18.tgz#f36ae6ed8573b18396668a4d38b4effe0bd1a2bf"
+  integrity sha512-9+Yvmw5idIQryJcXVKZ2HASLKj2RUJizDuDFPq5ut9X+8y8MTWAkO0hO6OSj3IPkV+LTo8QF7QOCl16R2PWpMw==
   dependencies:
-    "@salesforce/core" "^8.0.3"
+    "@salesforce/core" "^8.1.1"
     "@salesforce/kit" "^3.1.6"
     "@salesforce/ts-types" "^2.0.10"
     "@types/shelljs" "^0.8.15"
@@ -1466,7 +1466,7 @@
     semver "^7.6.2"
     ts-retry-promise "^0.8.1"
 
-"@salesforce/core@^8.0.1", "@salesforce/core@^8.0.2", "@salesforce/core@^8.0.3", "@salesforce/core@^8.1.0":
+"@salesforce/core@^8.0.1", "@salesforce/core@^8.0.2", "@salesforce/core@^8.1.0", "@salesforce/core@^8.1.1":
   version "8.1.1"
   resolved "https://registry.yarnpkg.com/@salesforce/core/-/core-8.1.1.tgz#26db4e6da3573c4bd223eb05cb3da6aad8b2a311"
   integrity sha512-PQ58kz0oRk/cjGhmiRj8W+x0Eg2mrWagrA4xMKaXjBAgSgU+V39BaO9IC1G2cAMGy53JJRBO5G876ala4gD44w==