diff --git a/src/Pharmacist.Core/Pharmacist.Core.csproj b/src/Pharmacist.Core/Pharmacist.Core.csproj
index 67c0fe3..771b74b 100644
--- a/src/Pharmacist.Core/Pharmacist.Core.csproj
+++ b/src/Pharmacist.Core/Pharmacist.Core.csproj
@@ -14,8 +14,8 @@
   <ItemGroup>
     <PackageReference Include="ICSharpCode.Decompiler" Version="5.0.2.5153" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="3.4.0" />
-    <PackageReference Include="NuGet.Protocol" Version="5.4.0" />
-    <PackageReference Include="NuGet.LibraryModel" Version="5.4.0" />
+    <PackageReference Include="NuGet.Protocol" Version="5.2.0" />
+    <PackageReference Include="NuGet.LibraryModel" Version="5.2.0" />
     <PackageReference Include="polly" Version="7.2.0" />
     <PackageReference Include="splat" Version="9.3.1" />
     <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Version="4.7.0" />