diff --git a/src/Directory.Build.targets b/src/Directory.Build.targets
index 5acefc616a..71923c0bbd 100644
--- a/src/Directory.Build.targets
+++ b/src/Directory.Build.targets
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <FrameworkVersion>2.1</FrameworkVersion>
-    <IdentityServerVersion>2.5.1-*</IdentityServerVersion>
+    <IdentityServerVersion>2.5.1</IdentityServerVersion>
   </PropertyGroup>
 
   <ItemGroup>