diff --git a/.ci_support/environment-old.yml b/.ci_support/environment-old.yml
index 1e9578e..579ccaf 100644
--- a/.ci_support/environment-old.yml
+++ b/.ci_support/environment-old.yml
@@ -9,4 +9,3 @@ dependencies:
 - tqdm =4.66.1
 - pympipool =0.7.0
 - cloudpickle =2.2.1
-- pyauthenticator =0.2.0