diff --git a/python/energy_flow_proper/09_dynamic_two_bath_one_qubit/poetry.lock b/python/energy_flow_proper/09_dynamic_two_bath_one_qubit/poetry.lock
index 946c38e..875b249 100644
--- a/python/energy_flow_proper/09_dynamic_two_bath_one_qubit/poetry.lock
+++ b/python/energy_flow_proper/09_dynamic_two_bath_one_qubit/poetry.lock
@@ -469,7 +469,7 @@ typer = "^0.4.0"
 type = "git"
 url = "git@gitlab.hrz.tu-chemnitz.de:s8896854--tu-dresden.de/hops.git"
 reference = "time_dep_coupling"
-resolved_reference = "f3a7d8b58686bc0ba0ac58a39d530407f743413e"
+resolved_reference = "02b50c653956165d3a7bf9336ae9f229c7306503"
 
 [[package]]
 name = "hopsflow"