diff --git a/functions/package-lock.json b/functions/package-lock.json
index ea4109a..6de5da1 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -8,7 +8,7 @@
       "name": "question-answer-translator-functions",
       "version": "1.0.0",
       "dependencies": {
-        "@azure/cosmos": "^3.17.3",
+        "@azure/cosmos": "^4.0.0",
         "@azure/functions": "^4.2.0",
         "@azure/identity": "^4.0.0",
         "axios": "^1.6.7",
@@ -106,9 +106,9 @@
       }
     },
     "node_modules/@azure/cosmos": {
-      "version": "3.17.3",
-      "resolved": "https://registry.npmjs.org/@azure/cosmos/-/cosmos-3.17.3.tgz",
-      "integrity": "sha512-wBglkQ6Irjv5Vo2iw8fd6eYj60WYRSSg4/0DBkeOP6BwQ4RA91znsOHd6s3qG6UAbNgYuzC9Nnq07vlFFZkHEw==",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/@azure/cosmos/-/cosmos-4.0.0.tgz",
+      "integrity": "sha512-/Z27p1+FTkmjmm8jk90zi/HrczPHw2t8WecFnsnTe4xGocWl0Z4clP0YlLUTJPhRLWYa5upwD9rMvKJkS1f1kg==",
       "dependencies": {
         "@azure/abort-controller": "^1.0.0",
         "@azure/core-auth": "^1.3.0",
diff --git a/functions/package.json b/functions/package.json
index 63c84f1..cb7d987 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -9,7 +9,7 @@
     "watch": "tsc -w"
   },
   "dependencies": {
-    "@azure/cosmos": "^3.17.3",
+    "@azure/cosmos": "^4.0.0",
     "@azure/functions": "^4.2.0",
     "@azure/identity": "^4.0.0",
     "axios": "^1.6.7",