diff --git a/design/corpus/packages.config b/design/corpus/packages.config
index 3e4d9984..3b9338f8 100644
--- a/design/corpus/packages.config
+++ b/design/corpus/packages.config
@@ -18,7 +18,7 @@
   <package id="System.Security.Cryptography.Encoding" version="4.3.0" targetFramework="net472" />
   <package id="System.Security.Cryptography.Primitives" version="4.3.0" targetFramework="net472" />
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.2" targetFramework="net472" />
-  <package id="System.Text.Encodings.Web" version="4.7.0" targetFramework="net472" />
+  <package id="System.Text.Encodings.Web" version="4.7.2" targetFramework="net472" />
   <package id="System.Text.Json" version="4.7.1" targetFramework="net472" />
   <package id="System.Threading.Tasks.Extensions" version="4.6.0-preview.18571.3" targetFramework="net472" />
   <package id="System.ValueTuple" version="4.5.0" targetFramework="net472" />