diff --git a/src/BicepButton/BicepButton.csproj b/src/BicepButton/BicepButton.csproj
index 8800380..dbfe6f8 100644
--- a/src/BicepButton/BicepButton.csproj
+++ b/src/BicepButton/BicepButton.csproj
@@ -11,7 +11,7 @@
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.1.0" />
     <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.16.4" />
     <PackageReference Include="Azure.Bicep.Core" Version="0.24.24" />
-    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="20.0.4" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="20.0.15" />
   </ItemGroup>
   <ItemGroup>
     <None Update="host.json">