diff --git a/notes.md b/notes.md
index f1498c8..a041597 100644
--- a/notes.md
+++ b/notes.md
@@ -149,3 +149,4 @@
 2018-08-22T06:26:00 - Trying out boneh-franklin approach for IBE (ref. 2003 paper) (stable-baselines3)
 2018-08-22T23:08:00 - Quick fix, referencing a known issue from the official repo (stable-baselines3)
 2018-08-22T19:05:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
+2018-09-13T08:29:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)