diff --git a/mhcflurry/downloads.yml b/mhcflurry/downloads.yml
index 5abf049fa4fe3b4f805a3c3478c8a136eba9b4be..8713caf9f6022bf34740a42b51a2f7b84cfc4f6c 100644
--- a/mhcflurry/downloads.yml
+++ b/mhcflurry/downloads.yml
@@ -35,8 +35,8 @@ releases:
 
             - name: models_class1_pan_variants
               part_urls:
-                - https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_variants.20191101.tar.bz2.part.aa
-                - https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_variants.20191101.tar.bz2.part.ab
+                - https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_variants.20191226.tar.bz2.part.aa
+                - https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_variants.20191226.tar.bz2.part.ab
               default: false
 
             - name: data_mass_spec_benchmark