diff --git a/notes.md b/notes.md
index e0e1f53..c6f8d5a 100644
--- a/notes.md
+++ b/notes.md
@@ -187,3 +187,4 @@
 2019-08-13T21:44:00 - Late-night bugfix on financial RL environment (stable-baselines3)
 2019-08-13T17:14:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)
 2019-09-05T17:04:00 - Minor doc updates: linking to article on quantization (stable-baselines3)
+2019-09-05T18:16:00 - Experimenting with FPGA constraints (source: Trimberger 'Three Ages of FPGAs') (stable-baselines3)