diff --git a/backend/src/Api/Api.csproj b/backend/src/Api/Api.csproj
index d6feb33..9454312 100644
--- a/backend/src/Api/Api.csproj
+++ b/backend/src/Api/Api.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="10.0.3" />
-    <PackageReference Include="Microsoft.OpenApi" Version="2.4.1" />
+    <PackageReference Include="Microsoft.OpenApi" Version="3.4.0" />
     <PackageReference Include="Swashbuckle.AspNetCore" Version="10.1.4" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="10.0.3">
       <PrivateAssets>all</PrivateAssets>
diff --git a/backend/src/Api/packages.lock.json b/backend/src/Api/packages.lock.json
index ec8594e..77a4cd2 100644
--- a/backend/src/Api/packages.lock.json
+++ b/backend/src/Api/packages.lock.json
@@ -30,9 +30,9 @@
       },
       "Microsoft.OpenApi": {
         "type": "Direct",
-        "requested": "[2.4.1, )",
-        "resolved": "2.4.1",
-        "contentHash": "u7QhXCISMQuab3flasb1hoaiERmUqyWsW7tmQODyILoQ7mJV5IRGM+2KKZYo0QUfC13evEOcHAb6TPWgqEQtrw=="
+        "requested": "[3.4.0, )",
+        "resolved": "3.4.0",
+        "contentHash": "5XsxYU401xZqrpBuSciVhYy4vzbzXM7zuYHjZDy+5QzYf6Iw9QdpFN/2E7WLT2gBcyz0BCKUNppm7ehWNfd8zQ=="
       },
       "Swashbuckle.AspNetCore": {
         "type": "Direct",
diff --git a/backend/tests/Api.Tests/packages.lock.json b/backend/tests/Api.Tests/packages.lock.json
index 15d5acf..182588b 100644
--- a/backend/tests/Api.Tests/packages.lock.json
+++ b/backend/tests/Api.Tests/packages.lock.json
@@ -209,8 +209,8 @@
       },
       "Microsoft.OpenApi": {
         "type": "Transitive",
-        "resolved": "2.4.1",
-        "contentHash": "u7QhXCISMQuab3flasb1hoaiERmUqyWsW7tmQODyILoQ7mJV5IRGM+2KKZYo0QUfC13evEOcHAb6TPWgqEQtrw=="
+        "resolved": "3.4.0",
+        "contentHash": "5XsxYU401xZqrpBuSciVhYy4vzbzXM7zuYHjZDy+5QzYf6Iw9QdpFN/2E7WLT2gBcyz0BCKUNppm7ehWNfd8zQ=="
       },
       "Microsoft.Testing.Extensions.Telemetry": {
         "type": "Transitive",
@@ -404,7 +404,7 @@
           "Domain": "[1.0.0, )",
           "Infrastructure": "[1.0.0, )",
           "Microsoft.AspNetCore.OpenApi": "[10.0.3, )",
-          "Microsoft.OpenApi": "[2.4.1, )",
+          "Microsoft.OpenApi": "[3.4.0, )",
           "Swashbuckle.AspNetCore": "[10.1.4, )",
           "Swashbuckle.AspNetCore.ReDoc": "[10.1.4, )"
         }