diff --git a/api/package-lock.json b/api/package-lock.json
index f806a9b..257cb2a 100644
--- a/api/package-lock.json
+++ b/api/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "@azure/communication-email": "^1.1.0",
-        "@azure/cosmos": "^4.2.0",
+        "@azure/cosmos": "^4.9.1",
         "@azure/functions": "^4.6.0"
       },
       "devDependencies": {
@@ -211,9 +211,9 @@
       }
     },
     "node_modules/@azure/cosmos": {
-      "version": "4.9.0",
-      "resolved": "https://registry.npmjs.org/@azure/cosmos/-/cosmos-4.9.0.tgz",
-      "integrity": "sha512-3LzLibuVgbhWEv6B9Hz7bMn0KAKKlr3Rn9xPulZ6Xx69GuwgWmQ4qmkrfYBBBFCJDQXoVAvVGBYkt9VlW8hmOg==",
+      "version": "4.9.1",
+      "resolved": "https://registry.npmjs.org/@azure/cosmos/-/cosmos-4.9.1.tgz",
+      "integrity": "sha512-fPnfL4JsmJJ/jEYUhlznKfrEr2pMvJwBncGVcUC2Xi7Nlj0MrUMRE+UOrptl/lRV2W7l68Br+b9Ikzm0KiZZHg==",
       "license": "MIT",
       "dependencies": {
         "@azure/abort-controller": "^2.1.2",
@@ -342,7 +342,6 @@
       "integrity": "sha512-e7jT4DxYvIDLk1ZHmU/m/mB19rex9sv0c2ftBtjSBv+kVM/902eh0fINUzD7UwLLNR+jU585GxUJ8/EBfAM5fw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.27.1",
         "@babel/generator": "^7.28.5",
@@ -2409,7 +2408,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -3337,7 +3335,6 @@
       "integrity": "sha512-F26gjC0yWN8uAA5m5Ss8ZQf5nDHWGlN/xWZIh8S5SRbsEKBovwZhxGd6LJlbZYxBgCYOtreSUyb8hpXyGC5O4A==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@jest/core": "30.2.0",
         "@jest/types": "30.2.0",
@@ -5038,7 +5035,6 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
diff --git a/api/package.json b/api/package.json
index cb4c1b3..75affc2 100644
--- a/api/package.json
+++ b/api/package.json
@@ -15,7 +15,7 @@
   },
   "dependencies": {
     "@azure/communication-email": "^1.1.0",
-    "@azure/cosmos": "^4.2.0",
+    "@azure/cosmos": "^4.9.1",
     "@azure/functions": "^4.6.0"
   },
   "devDependencies": {