diff --git a/build_installer.py b/build_installer.py
index d1ee9c7..daef063 100755
--- a/build_installer.py
+++ b/build_installer.py
@@ -112,9 +112,9 @@ if __name__ == "__main__":
 
     if platform.startswith("win"):
         # patch constructor's nsis template
-        import patch
+        import patch_ng
 
-        pset = patch.fromfile(
+        pset = patch_ng.fromfile(
             "static/0001-Customize-Windows-NSIS-installer-script.patch"
         )
         pset.write_hunks(
diff --git a/buildenv.yaml b/buildenv.yaml
index 3dd229c..2d22ec2 100644
--- a/buildenv.yaml
+++ b/buildenv.yaml
@@ -5,5 +5,5 @@ dependencies:
   - anaconda-client
   - conda-build
   - constructor
-  - python-patch
+  - patch-ng
   - requests