diff --git a/container_environment.yaml b/container_environment.yaml
index 9cb26cea..8bb548d9 100644
--- a/container_environment.yaml
+++ b/container_environment.yaml
@@ -9,6 +9,7 @@ dependencies:
  - pandas
  - astropy >= 5.3
  - rubin-scheduler
+ - rubin-sim
  - uranography >= 1.1.0
  - bokeh >= 3.1.1
  - panel >= 1.1.0
diff --git a/requirements.txt b/requirements.txt
index 86c1bd96..57eef49a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,4 +11,5 @@ param
 pytz
 uranography
 rubin-scheduler
+rubin-sim
 pip