diff --git a/publications/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls b/publications/research-bulletins/in-prog/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls
similarity index 100%
rename from publications/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls
rename to publications/research-bulletins/in-prog/MRL-0006 - Difficulty Adjustment Algorithms in Cryptocurrency Protocols/mrl.cls