diff --git a/downloads-generation/models_class1_pan_refined/GENERATE.sh b/downloads-generation/models_class1_pan_refined/GENERATE.sh
index fbb9f502fa2010bbf597f014b0f351aa080cb08d..b8d95720cf1c22038cd7a242a3e7cfb6a9875e22 100755
--- a/downloads-generation/models_class1_pan_refined/GENERATE.sh
+++ b/downloads-generation/models_class1_pan_refined/GENERATE.sh
@@ -63,13 +63,13 @@ time python make_multiallelic_training_data.py \
     --hits "$(mhcflurry-downloads path data_mass_spec_annotated)/annotated_ms.csv.bz2" \
     --expression "$(mhcflurry-downloads path data_curated)/rna_expression.csv.bz2" \
     --exclude-contig "1" \
+    --decoys-per-hit 1 \
     --out train.multiallelic.no_chr1.csv
 
 time mhcflurry-multiallelic-refinement \
     --monoallelic-data "$MONOALLELIC_TRAIN" \
     --multiallelic-data train.multiallelic.no_chr1.csv \
     --models-dir "$(mhcflurry-downloads path models_class1_pan)/models.with_mass_spec" \
-    --max-models 1 \
     --hyperparameters hyperparameters.yaml \
     --out-affinity-predictor-dir $(pwd)/test_models.no_chr1.affinity \
     --out-presentation-predictor-dir $(pwd)/test_models.no_chr1.presentation \
@@ -90,6 +90,7 @@ echo "Beginning production run"
 time python make_multiallelic_training_data.py \
     --hits "$(mhcflurry-downloads path data_mass_spec_annotated)/annotated_ms.csv.bz2" \
     --expression "$(mhcflurry-downloads path data_curated)/rna_expression.csv.bz2" \
+    --decoys-per-hit 1 \
     --out train.multiallelic.csv
 
 ALLELE_LIST=$(bzcat "$MONOALLELIC_TRAIN" | cut -f 1 -d , | grep -v allele | uniq | sort | uniq)
diff --git a/mhcflurry/downloads.yml b/mhcflurry/downloads.yml
index 421c7e5e364d6e422058c4fc37f90dd528d5d95f..3fdcf338eb9f730d442a23b10eddfe6b509c6582 100644
--- a/mhcflurry/downloads.yml
+++ b/mhcflurry/downloads.yml
@@ -30,7 +30,7 @@ releases:
               default: false
 
             - name: models_class1_pan_refined
-              url: https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_refined.20191209.tar.bz2
+              url: https://github.com/openvax/mhcflurry/releases/download/1.4.0/models_class1_pan_refined.20191209b.tar.bz2
               default: false
 
             - name: models_class1_pan_variants