diff --git a/package.json b/package.json
index e47d8803..61333d31 100644
--- a/package.json
+++ b/package.json
@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "@oclif/plugin-command-snapshot": "^5.2.13",
-    "@salesforce/cli-plugins-testkit": "^5.3.26",
+    "@salesforce/cli-plugins-testkit": "^5.3.28",
     "@salesforce/dev-scripts": "^10.2.10",
     "@salesforce/plugin-command-reference": "^3.1.14",
     "@salesforce/ts-sinon": "^1.4.26",
diff --git a/yarn.lock b/yarn.lock
index 9bd2b1b1..8e8fdd80 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1291,12 +1291,12 @@
   resolved "https://registry.yarnpkg.com/@pkgjs/parseargs/-/parseargs-0.11.0.tgz#a77ea742fab25775145434eb1d2328cf5013ac33"
   integrity sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==
 
-"@salesforce/cli-plugins-testkit@^5.3.26":
-  version "5.3.26"
-  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.26.tgz#11f4946b24749a7f32125688ed43ae9dbc248e60"
-  integrity sha512-5+Cx0Gbx5v+uvB6TQr+gHIRULOCUhzLtlBRh2UZQoWlUihlOvTYIOXqWQP50qm92KlV0iv3LJ25zJQDFnvAIzQ==
+"@salesforce/cli-plugins-testkit@^5.3.28":
+  version "5.3.28"
+  resolved "https://registry.yarnpkg.com/@salesforce/cli-plugins-testkit/-/cli-plugins-testkit-5.3.28.tgz#5f102c23446009be88c386507722d7ac1d0ab64f"
+  integrity sha512-kO/TgIOGin+grB+T93dILA1VbrQbtuoLyD2N/LAAhBeqBG8XtrZdll/9GJ6FdSfpZO5p4KNvffBjtrO34pUJVw==
   dependencies:
-    "@salesforce/core" "^8.4.0"
+    "@salesforce/core" "^8.5.1"
     "@salesforce/kit" "^3.2.1"
     "@salesforce/ts-types" "^2.0.11"
     "@types/shelljs" "^0.8.15"