diff --git a/quasix/requirements-lock.txt b/quasix/requirements-lock.txt
index 28cd513..8014344 100644
--- a/quasix/requirements-lock.txt
+++ b/quasix/requirements-lock.txt
@@ -15,7 +15,7 @@
 # Core dependencies (required)
 numpy==2.2.6
 scipy==1.15.3
-pyscf==2.11.0
+pyscf==2.12.0
 h5py==3.15.1
 matplotlib==3.10.8