diff --git a/docker/biolabs/washu/conda_envs/py3.5.environment.yml b/docker/biolabs/washu/conda_envs/py3.5.environment.yml
index b7e4ba2..f4d3338 100644
--- a/docker/biolabs/washu/conda_envs/py3.5.environment.yml
+++ b/docker/biolabs/washu/conda_envs/py3.5.environment.yml
@@ -21,7 +21,7 @@ dependencies:
 - glib=2.55.0=0
 - gst-plugins-base=1.8.0=0
 - gstreamer=1.8.0=1
-- icu=58.2=0
+- anaconda::icu=58
 - jpeg=9b=2
 - libffi=3.2.1=3
 - libiconv=1.15=0