diff --git a/flepimop/gempyor_pkg/setup.cfg b/flepimop/gempyor_pkg/setup.cfg
index f63f130da..f93c20221 100644
--- a/flepimop/gempyor_pkg/setup.cfg
+++ b/flepimop/gempyor_pkg/setup.cfg
@@ -35,6 +35,7 @@ install_requires =
     dask
     scipy
     graphviz
+    boto3
 
 # see https://stackoverflow.com/questions/58826164/dependencies-requirements-for-setting-up-testing-and-installing-a-python-lib
 # installed for pip install -e ".[test]"