diff --git a/Data/CecilExtensions.cs b/Data/CecilExtensions.cs
index b89d339..01f81b2 100644
--- a/Data/CecilExtensions.cs
+++ b/Data/CecilExtensions.cs
@@ -356,21 +356,21 @@ private static void WriteGenericConstraintsHtml (Collection<GenericParameter> ge
                     w.Write (" : ");
                     var head = "";
                     foreach (var c in p.Constraints) {
-                        if (c.FullName == "System.Object") {
+                        if (c.ConstraintType.FullName == "System.Object") {
                             w.Write ("class");
                             head = ", ";
                             break;
                         }
-                        else if (c.FullName == "System.ValueType") {
+                        else if (c.ConstraintType.FullName == "System.ValueType") {
                             w.Write ("struct");
                             head = ", ";
                             break;
                         }
                     }
                     foreach (var c in p.Constraints) {
-                        if (c.FullName != "System.ValueType" && c.FullName != "System.Object") {
+                        if (c.ConstraintType.FullName != "System.ValueType" && c.ConstraintType.FullName != "System.Object") {
                             w.Write (head);
-                            WriteReferenceHtml (c, w, framework);
+                            WriteReferenceHtml (c.ConstraintType, w, framework);
                             head = ", ";
                         }
                     }
diff --git a/FuGetGallery.csproj b/FuGetGallery.csproj
index 9ff1690..12d1fdf 100644
--- a/FuGetGallery.csproj
+++ b/FuGetGallery.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="ICSharpCode.Decompiler" Version="3.2.0.3856" />
-    <PackageReference Include="Mono.Cecil" Version="0.10.4" />
+    <PackageReference Include="Mono.Cecil" Version="0.11.5" />
     <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="5.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.3" />
     <PackageReference Include="NGraphics" Version="0.6.0-beta1" />