diff --git a/build/version.props b/build/version.props
index ea28ead8c2..9835164e03 100644
--- a/build/version.props
+++ b/build/version.props
@@ -2,7 +2,7 @@
 <Project>
 <!-- MicrosoftIdentityModelVersion  -->
   <PropertyGroup>
-    <MicrosoftIdentityModelCurrentVersion>8.4.0</MicrosoftIdentityModelCurrentVersion>
+    <MicrosoftIdentityModelCurrentVersion>8.5.1</MicrosoftIdentityModelCurrentVersion>
 
     <PreviewVersionSuffix Condition="'$(PreviewVersionSuffix)' == '' and '$(BuildingInsideVisualStudio)' != 'true'">preview-$([System.DateTime]::Now.AddYears(-2019).Year)$([System.DateTime]::Now.ToString("MMddHHmmss"))</PreviewVersionSuffix>
     <!--VS re-evaluates the variables, so having seconds or minutes creates an infinite loop of package updates-->