diff --git a/Directory.Packages.props b/Directory.Packages.props
index efe0d52..77fa5eb 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -13,7 +13,7 @@
     <!-- Transitive-vulnerability lifts: newer patched versions of packages pulled
          in by Microsoft.Data.Sqlite and Microsoft.AspNetCore.OpenApi. -->
     <PackageVersion Include="SQLitePCLRaw.bundle_e_sqlite3" Version="3.0.5" />
-    <PackageVersion Include="Microsoft.OpenApi" Version="2.12.2" />
+    <PackageVersion Include="Microsoft.OpenApi" Version="3.10.2" />
     <PackageVersion Include="Microsoft.Extensions.TimeProvider.Testing" Version="10.9.0" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageVersion Include="xunit" Version="2.9.3" />
diff --git a/src/Lottery.Api/packages.lock.json b/src/Lottery.Api/packages.lock.json
index 63895f2..cd6abd8 100644
--- a/src/Lottery.Api/packages.lock.json
+++ b/src/Lottery.Api/packages.lock.json
@@ -13,9 +13,9 @@
       },
       "Microsoft.OpenApi": {
         "type": "Direct",
-        "requested": "[2.12.2, )",
-        "resolved": "2.12.2",
-        "contentHash": "ZkT7qiJe0Kj0+DTZOZo+xrDy1kNmdsWFQVPIQLNx9ZJ0T9cB2LG7r+Bi60so8/+yg1nkS7QCPadrzsTG4VPKrA=="
+        "requested": "[3.10.2, )",
+        "resolved": "3.10.2",
+        "contentHash": "qzg4a3WmgQm28Azaporbnsu+KHA+vq5sgpQQFLiJgB06Rra2S+kzGAU7pzUB8/UIwZJCSCY2JEE/M5e0hQ2K8w=="
       },
       "Scalar.AspNetCore": {
         "type": "Direct",