diff --git a/meta.yaml b/meta.yaml
index efff698..c7fe5b0 100644
--- a/meta.yaml
+++ b/meta.yaml
@@ -27,7 +27,7 @@ requirements:
     - tqdm
     - requests
     - biopython
-    - yaml
+    - pyyaml
 
 test:
   commands:
diff --git a/upimapi.py b/upimapi.py
index 7240397..0b3fbe3 100644
--- a/upimapi.py
+++ b/upimapi.py
@@ -1354,6 +1354,7 @@ def upimapi():
 
     if args.from_db != 'UniProtKB AC/ID' or args.to_db != 'UniProtKB':
         basic_idmapping_multiprocess(ids, table_output, args.from_db, args.to_db, threads=args.threads)
+        return
 
     if not args.skip_id_checking:
         ids, not_valid = get_valid_entries_multiprocess(ids, threads=args.threads)