diff --git a/package-lock.json b/package-lock.json
index 6ff3307..7d01e92 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
       "devDependencies": {
         "@aws-sdk/credential-provider-env": "^3.972.39",
         "@biomejs/biome": "2.4.13",
-        "@smithy/property-provider": "^4.2.14",
+        "@smithy/property-provider": "^4.3.4",
         "@types/node": "^25.6.0",
         "@vitest/coverage-v8": "^3.2.4",
         "aws-sdk-client-mock": "^4.1.0",
@@ -2822,13 +2822,13 @@
       }
     },
     "node_modules/@smithy/property-provider": {
-      "version": "4.2.14",
-      "resolved": "https://registry.npmjs.org/@smithy/property-provider/-/property-provider-4.2.14.tgz",
-      "integrity": "sha512-WuM31CgfsnQ/10i7NYr0PyxqknD72Y5uMfUMVSniPjbEPceiTErb4eIqJQ+pdxNEAUEWrewrGjIRjVbVHsxZiQ==",
+      "version": "4.3.4",
+      "resolved": "https://registry.npmjs.org/@smithy/property-provider/-/property-provider-4.3.4.tgz",
+      "integrity": "sha512-ozP4y+MVRgiJJ1WEkT3/cFHungnv7g1ED9A9lVFlIlOUc9QkEfEYOu+AKUpyRqS9lxKWsdWWcdgSvX6aoRxV/A==",
       "dev": true,
       "license": "Apache-2.0",
       "dependencies": {
-        "@smithy/types": "^4.14.1",
+        "@smithy/core": "^3.24.4",
         "tslib": "^2.6.2"
       },
       "engines": {
diff --git a/package.json b/package.json
index c44098f..446d585 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "devDependencies": {
     "@aws-sdk/credential-provider-env": "^3.972.39",
     "@biomejs/biome": "2.4.13",
-    "@smithy/property-provider": "^4.2.14",
+    "@smithy/property-provider": "^4.3.4",
     "@types/node": "^25.6.0",
     "@vitest/coverage-v8": "^3.2.4",
     "aws-sdk-client-mock": "^4.1.0",