Index: Flask-Security-Too-5.1.1/flask_security/core.py
===================================================================
--- Flask-Security-Too-5.1.1.orig/flask_security/core.py
+++ Flask-Security-Too-5.1.1/flask_security/core.py
@@ -1579,7 +1579,7 @@ class Security:
                 and "authenticator" in cv("TWO_FACTOR_ENABLED_METHODS", app=app)
             )
             if need_qrcode:
-                self._check_modules("qrcode", "TWO_FACTOR or UNIFIED_SIGNIN")
+                self._check_modules("pyqrcodeng", "TWO_FACTOR or UNIFIED_SIGNIN")
 
             need_sms = (
                 cv("UNIFIED_SIGNIN", app=app)
Index: Flask-Security-Too-5.1.1/flask_security/totp.py
===================================================================
--- Flask-Security-Too-5.1.1.orig/flask_security/totp.py
+++ Flask-Security-Too-5.1.1/flask_security/totp.py
@@ -140,15 +140,11 @@ class Totp:
         .. versionadded:: 4.0.0
         """
         try:
-            import qrcode
-            import qrcode.image.svg
+            import pyqrcodeng
 
-            image = qrcode.make(
-                self.get_totp_uri(username, totp),
-                image_factory=qrcode.image.svg.SvgImage,
-            )
+            image = pyqrcodeng.create(self.get_totp_uri(username, totp))
             with io.BytesIO() as virtual_file:
-                image.save(virtual_file)
+                image.svg(virtual_file, scale=1)
                 image_as_str = base64.b64encode(virtual_file.getvalue()).decode("ascii")
 
             return f"data:image/svg+xml;base64,{image_as_str}"