diff --git a/numethods/orthogonal.py b/numethods/orthogonal.py
index 24ece91..7687297 100644
--- a/numethods/orthogonal.py
+++ b/numethods/orthogonal.py
@@ -5,7 +5,7 @@ from .exceptions import SingularMatrixError
 
 
 class QRGramSchmidt:
-    """Classical Gram–Schmidt orthogonalization."""
+    """Classical Gram-Schmidt orthogonalization."""
 
     def __init__(self, A: Matrix):
         self.m, self.n = A.shape()
@@ -34,7 +34,7 @@ class QRGramSchmidt:
 
 
 class QRModifiedGramSchmidt:
-    """Modified Gram–Schmidt orthogonalization."""
+    """Modified Gram-Schmidt orthogonalization."""
 
     def __init__(self, A: Matrix):
         self.m, self.n = A.shape()