diff --git a/packages/i18n/package.json b/packages/i18n/package.json
index 05574e2..25b27de 100644
--- a/packages/i18n/package.json
+++ b/packages/i18n/package.json
@@ -35,6 +35,6 @@
     "@gecut/logger": "^1.4.4",
     "@gecut/signal": "^2.2.2",
     "@gecut/types": "^2.2.1",
-    "type-fest": "^4.13.0"
+    "type-fest": "^4.20.1"
   }
 }
diff --git a/packages/lit-helper/package.json b/packages/lit-helper/package.json
index 2c9acfb..343d2da 100644
--- a/packages/lit-helper/package.json
+++ b/packages/lit-helper/package.json
@@ -47,6 +47,6 @@
     "lit": "^3.1.3",
     "lit-html": "^3.1.2",
     "tslib": "^2.6.2",
-    "type-fest": "^4.13.0"
+    "type-fest": "^4.20.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 627cd1e..79124d5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -290,7 +290,7 @@ __metadata:
     "@gecut/logger": "npm:^1.4.4"
     "@gecut/signal": "npm:^2.2.2"
     "@gecut/types": "npm:^2.2.1"
-    type-fest: "npm:^4.13.0"
+    type-fest: "npm:^4.20.1"
   languageName: unknown
   linkType: soft
 
@@ -309,7 +309,7 @@ __metadata:
     lit: "npm:^3.1.3"
     lit-html: "npm:^3.1.2"
     tslib: "npm:^2.6.2"
-    type-fest: "npm:^4.13.0"
+    type-fest: "npm:^4.20.1"
   languageName: unknown
   linkType: soft
 
@@ -6773,13 +6773,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"type-fest@npm:^4.13.0":
-  version: 4.13.0
-  resolution: "type-fest@npm:4.13.0"
-  checksum: 10c0/9259549d37dec14ac0f759af42fb6305f08ba46f74bf066caec6b925a674c0021e3921586d41ce0c60d5e1721348d0ff86fff5f9fb5fa12176dd5f2572822c51
-  languageName: node
-  linkType: hard
-
 "type-fest@npm:^4.2.0, type-fest@npm:^4.6.0, type-fest@npm:^4.8.3":
   version: 4.11.1
   resolution: "type-fest@npm:4.11.1"
@@ -6787,6 +6780,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"type-fest@npm:^4.20.1":
+  version: 4.20.1
+  resolution: "type-fest@npm:4.20.1"
+  checksum: 10c0/c31da16fe170a74c5b7e102e70e764ba8ec6ade128e782a56f842aefa07307df5a6353e6b5601d3b30ff2d856d8b955f89813df639e4758fedcf8e426b2d854e
+  languageName: node
+  linkType: hard
+
 "typed-array-buffer@npm:^1.0.2":
   version: 1.0.2
   resolution: "typed-array-buffer@npm:1.0.2"