diff --git a/workflow/envs/pangolin.yaml b/workflow/envs/pangolin.yaml
index 20c137a9d..040b1292d 100644
--- a/workflow/envs/pangolin.yaml
+++ b/workflow/envs/pangolin.yaml
@@ -2,4 +2,4 @@ channels:
   - bioconda
   - conda-forge
 dependencies:
-  - pangolin =3.1.19
+  - pangolin =3.1.20