diff --git a/Deep-Verification-Base.md b/Deep-Verification-Base.md
index 79ea540..3a57f81 100644
--- a/Deep-Verification-Base.md
+++ b/Deep-Verification-Base.md
@@ -6,6 +6,7 @@ Updates:
 * [[2019-01-19 Persistence and some reworks|2019-01-19]]
 * [[2019-02-01 SPICE writer and more improvements|2019-02-01]]
 * [[2019-02-03 Implicit connection of nets with same label|2019-02-03]]
+* [[2019-02-05 Hierarchical merge and performance on a real testcase|2019-02-05]]
 
 # The problem