diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index 164294f..5534976 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -1,6 +1,6 @@
 # <a name="main"></a>C++ Core Guidelines
 
-December 8, 2019
+May 28, 2020
 
 
 Editors: