diff --git a/BullseyeSmokeTester.McMaster/BullseyeSmokeTester.McMaster.csproj b/BullseyeSmokeTester.McMaster/BullseyeSmokeTester.McMaster.csproj
index 2f264f8e..b24bb327 100644
--- a/BullseyeSmokeTester.McMaster/BullseyeSmokeTester.McMaster.csproj
+++ b/BullseyeSmokeTester.McMaster/BullseyeSmokeTester.McMaster.csproj
@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="5.0.1" />
+    <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="5.1.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/BullseyeSmokeTester.McMaster/packages.lock.json b/BullseyeSmokeTester.McMaster/packages.lock.json
index 0f36ef2d..80f00173 100644
--- a/BullseyeSmokeTester.McMaster/packages.lock.json
+++ b/BullseyeSmokeTester.McMaster/packages.lock.json
@@ -4,9 +4,9 @@
     "net10.0": {
       "McMaster.Extensions.CommandLineUtils": {
         "type": "Direct",
-        "requested": "[5.0.1, )",
-        "resolved": "5.0.1",
-        "contentHash": "dXerCHdnTrlpoQjdpxBISv9OIqqziJph1bKOTK95nPG0m7yDyMyVmQDcE1Z10ZZlQeaod1C8zewOW+MQOgPWhw=="
+        "requested": "[5.1.0, )",
+        "resolved": "5.1.0",
+        "contentHash": "YceiKmxdsBrlkAJpmJ2N8XkLyAH01xLsm4VLfjNp5MvtAom2wflZtEBz3CLMQret6Z7jSh3oBO1ULF1Is0tNxA=="
       },
       "Microsoft.VisualStudio.Threading.Analyzers": {
         "type": "Direct",