diff --git a/WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj b/WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj
index 916bf4b..b715a0f 100644
--- a/WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj
+++ b/WoofWare.Myriad.Plugins.Attributes/Test/WoofWare.Myriad.Plugins.Attributes.Test.fsproj
@@ -12,7 +12,7 @@
     </ItemGroup>
 
     <ItemGroup>
-        <PackageReference Include="ApiSurface" Version="4.0.36" />
+        <PackageReference Include="ApiSurface" Version="4.0.39" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0"/>
         <PackageReference Include="NUnit" Version="4.1.0"/>
         <PackageReference Include="NUnit3TestAdapter" Version="4.5.0"/>
diff --git a/WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj b/WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj
index b2456c8..062b4c8 100644
--- a/WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj
+++ b/WoofWare.Myriad.Plugins.Test/WoofWare.Myriad.Plugins.Test.fsproj
@@ -33,7 +33,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="ApiSurface" Version="4.0.36"/>
+    <PackageReference Include="ApiSurface" Version="4.0.39"/>
     <PackageReference Include="FsCheck" Version="2.16.6"/>
     <PackageReference Include="FsUnit" Version="6.0.0"/>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0"/>
diff --git a/nix/deps.nix b/nix/deps.nix
index 8698b4a..a6e6382 100644
--- a/nix/deps.nix
+++ b/nix/deps.nix
@@ -13,8 +13,8 @@
   })
   (fetchNuGet {
     pname = "ApiSurface";
-    version = "4.0.36";
-    sha256 = "sha256-xqIkMvjJD5UaAHYw8B0CU4h+fJvxNSVspMFro2dz0Rc=";
+    version = "4.0.39";
+    sha256 = "sha256-I4K5nJbltsfL/1r+KPTIo2wUd30zsCC2pkrnIRnsRHM=";
   })
   (fetchNuGet {
     pname = "Fantomas.Core";