diff --git a/eng/Versions.props b/eng/Versions.props
index a8bc0911..285ce424 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -16,7 +16,7 @@
     <JetBrainsVersion>2019.1.3</JetBrainsVersion>
     <JsonNetVersion>12.0.2</JsonNetVersion>
     <JsonNetBsonVersion>1.0.2</JsonNetBsonVersion>
-    <IdentityModelVersion>6.2.0-preview-60906195846</IdentityModelVersion>
+    <IdentityModelVersion>5.5.1-preview-60930170140</IdentityModelVersion>
     <ImmutableCollectionsVersion>1.5.0</ImmutableCollectionsVersion>
     <LinqAsyncVersion>4.0.0</LinqAsyncVersion>
     <MongoDbVersion>2.9.0</MongoDbVersion>
diff --git a/src/OpenIddict.Server/OpenIddictServerHandlers.cs b/src/OpenIddict.Server/OpenIddictServerHandlers.cs
index 796fa5c5..9acc60a4 100644
--- a/src/OpenIddict.Server/OpenIddictServerHandlers.cs
+++ b/src/OpenIddict.Server/OpenIddictServerHandlers.cs
@@ -15,6 +15,7 @@ using System.Text;
 using System.Threading.Tasks;
 using JetBrains.Annotations;
 using Microsoft.Extensions.Logging;
+using Microsoft.IdentityModel.JsonWebTokens;
 using Microsoft.IdentityModel.Tokens;
 using OpenIddict.Abstractions;
 using static OpenIddict.Abstractions.OpenIddictConstants;