diff --git a/commafeed-client/package-lock.json b/commafeed-client/package-lock.json
index c57cbc55..a8c57cfe 100644
--- a/commafeed-client/package-lock.json
+++ b/commafeed-client/package-lock.json
@@ -65,7 +65,7 @@
                 "typescript": "7.0.2",
                 "vite": "8.3.5",
                 "vite-plugin-checker": "0.14.5",
-                "vitest": "5.0.5",
+                "vitest": "5.1.0",
                 "yaml": "2.9.1"
             }
         },
@@ -2658,14 +2658,14 @@
             }
         },
         "node_modules/@vitest/mocker": {
-            "version": "5.0.5",
-            "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-5.0.5.tgz",
-            "integrity": "sha512-xLL3lkDegJZw+MGoGaCCsFayDZthGgpAtr3Vziyfc4p7xH89K7KRPcRBBh/kEYm0Aqkt5DtTmkYpBtRV/FrHZg==",
+            "version": "5.1.0",
+            "resolved": "https://registry.npmjs.org/@vitest/mocker/-/mocker-5.1.0.tgz",
+            "integrity": "sha512-5umB9/jlWcqVS6fsrFmv5Gdnpu6wAUio/lEOwAmvB7v+lFo/IW2B9FhAD0p19GCULTgMzLCdUmuCDCnAzWgppQ==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
                 "@jridgewell/trace-mapping": "0.3.31",
-                "@vitest/spy": "5.0.5",
+                "@vitest/spy": "5.1.0",
                 "estree-walker": "^3.0.3",
                 "magic-string": "^1.4.3"
             },
@@ -2686,9 +2686,9 @@
             }
         },
         "node_modules/@vitest/spy": {
-            "version": "5.0.5",
-            "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-5.0.5.tgz",
-            "integrity": "sha512-lwJRExuH417257Q5wv9QYugN9IMJkoxcrKrYxGPQkBzl7wlNpTUxD/5yNX4ESKVUIShKPgkGchYPFMWOOk0wzw==",
+            "version": "5.1.0",
+            "resolved": "https://registry.npmjs.org/@vitest/spy/-/spy-5.1.0.tgz",
+            "integrity": "sha512-2DPO5OMHWKrBngC+fCmTQqemNF0gidRhp3lxbBmRhW+M1XJrfgPpqNqWVevXtn2f2ufD5ZaR1B6B641aAlcX5A==",
             "dev": true,
             "license": "MIT",
             "funding": {
@@ -5906,14 +5906,14 @@
             }
         },
         "node_modules/vitest": {
-            "version": "5.0.5",
-            "resolved": "https://registry.npmjs.org/vitest/-/vitest-5.0.5.tgz",
-            "integrity": "sha512-cPODOMF8YnkiiYtDdHo6n4wWmBrOBBbOIYH2d33M4l3CdNn72h+qMmO6uXffUN6A5AZFXNND/d+krS9mgkXRfg==",
+            "version": "5.1.0",
+            "resolved": "https://registry.npmjs.org/vitest/-/vitest-5.1.0.tgz",
+            "integrity": "sha512-MzmNFnrwa8v8lF1bLxw3UJ4EREwVOVb75VqJZmUDRjJ6EluK/x9th7qTbaeDk41WxE1GxWqmTXcdsfobfH5sOA==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
                 "@types/chai": "^5.2.2",
-                "@vitest/mocker": "5.0.5",
+                "@vitest/mocker": "5.1.0",
                 "chai": "^6.3.0",
                 "es-module-lexer": "^2.3.2",
                 "expect-type": "^1.4.0",
@@ -5939,12 +5939,12 @@
                 "@edge-runtime/vm": "*",
                 "@opentelemetry/api": "^1.9.0",
                 "@types/node": "^22.0.0 || >=24.0.0",
-                "@vitest/browser-playwright": "5.0.5",
-                "@vitest/browser-preview": "5.0.5",
+                "@vitest/browser-playwright": "5.1.0",
+                "@vitest/browser-preview": "5.1.0",
                 "@vitest/browser-webdriverio": "^5.0.0-beta.5 || >=5.0.0",
-                "@vitest/coverage-istanbul": "5.0.5",
-                "@vitest/coverage-v8": "5.0.5",
-                "@vitest/ui": "5.0.5",
+                "@vitest/coverage-istanbul": "5.1.0",
+                "@vitest/coverage-v8": "5.1.0",
+                "@vitest/ui": "5.1.0",
                 "happy-dom": "*",
                 "jsdom": "*",
                 "vite": "^6.4.0 || ^7.0.0 || ^8.0.0"
diff --git a/commafeed-client/package.json b/commafeed-client/package.json
index 75ea016b..76445762 100644
--- a/commafeed-client/package.json
+++ b/commafeed-client/package.json
@@ -72,7 +72,7 @@
         "typescript": "7.0.2",
         "vite": "8.3.5",
         "vite-plugin-checker": "0.14.5",
-        "vitest": "5.0.5",
+        "vitest": "5.1.0",
         "yaml": "2.9.1"
     },
     "overrides": {