diff --git a/notes.md b/notes.md
index 148052b..71a5035 100644
--- a/notes.md
+++ b/notes.md
@@ -261,3 +261,4 @@
 2022-04-06T02:32:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
 2022-04-10T06:37:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
 2022-04-10T00:07:00 - Refactor for clarity, might break a few tests though (stable-baselines3)
+2022-04-10T22:12:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)