diff --git a/mindpq.py b/mindpq.py
index 3fa0aee..b0f402b 100755
--- a/mindpq.py
+++ b/mindpq.py
@@ -22,7 +22,7 @@ def import_keys() -> list[RSA.RsaKey]:
 def factor(moduli: list[int]) -> list[tuple[int, int]]:
     """Factorise moduli via batch GCD, returned at the same index"""
     factors: list[tuple[int, int]] = []
-    gs = batch_gcd(moduli)
+    gs = batch_gcd(*moduli)
     for n, p in zip(moduli, gs):
         if p == 1:
             raise RuntimeError(f"Failed to factorise modulus {n}")
diff --git a/requirements.txt b/requirements.txt
index c41d61b..20c548b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
 pycryptodome == 3.14.1
-git+https://github.com/fionn/batch-gcd@0.0.1#egg=batch-gcd
+batch-gcd == 0.0.3