diff --git a/matrix-as-xyz.cabal b/matrix-as-xyz.cabal
--- a/matrix-as-xyz.cabal
+++ b/matrix-as-xyz.cabal
@@ -4,11 +4,11 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 44baaebc9c92a8247f166d2e4ce54c025bca25e65992f5e10bdae3551bb1d2fd
+-- hash: 15ab1dd21ef40ddf3fc76de1c5032ebfbecff0ac440e58b84a9dcb82b66e6c9c
 
 name:           matrix-as-xyz
-version:        0.1.2.0
-synopsis:       Read and Display Jones-Faithfull notation for spacegroup and planegroup
+version:        0.1.2.1
+synopsis:       Read and Display Jones-Faithful notation for spacegroup and planegroup
 description:    Please see the README on GitHub at <https://github.com/narumij/matrix-as-xyz#readme>
 category:       Chemistry
 homepage:       https://github.com/narumij/matrix-as-xyz#readme
diff --git a/src/Data/Matrix/AsXYZ.hs b/src/Data/Matrix/AsXYZ.hs
--- a/src/Data/Matrix/AsXYZ.hs
+++ b/src/Data/Matrix/AsXYZ.hs
@@ -6,7 +6,7 @@
 Stability   : experimental
 Portability : ?
 
-Read and Display Jones-Faithfull notation for spacegroup (e.g. 'x,y,z') and planegroup (e.g. 'x,y')
+Read and Display Jones-Faithful notation for spacegroup (e.g. 'x,y,z') and planegroup (e.g. 'x,y')
 
 -}
 module Data.Matrix.AsXYZ (
diff --git a/src/Data/Matrix/AsXYZ/ParseXY.hs b/src/Data/Matrix/AsXYZ/ParseXY.hs
--- a/src/Data/Matrix/AsXYZ/ParseXY.hs
+++ b/src/Data/Matrix/AsXYZ/ParseXY.hs
@@ -6,7 +6,7 @@
 Stability   : experimental
 Portability : ?
 
-Jones-Faithfull notation parser for planegroup.
+Jones-Faithful notation parser for planegroup.
 
 -}
 module Data.Matrix.AsXYZ.ParseXY (
diff --git a/src/Data/Matrix/AsXYZ/ParseXYZ.hs b/src/Data/Matrix/AsXYZ/ParseXYZ.hs
--- a/src/Data/Matrix/AsXYZ/ParseXYZ.hs
+++ b/src/Data/Matrix/AsXYZ/ParseXYZ.hs
@@ -6,7 +6,7 @@
 Stability   : experimental
 Portability : ?
 
-Jones-Faithfull notation parser for spacegroup.
+Jones-Faithful notation parser for spacegroup.
 
 -}
 module Data.Matrix.AsXYZ.ParseXYZ (
diff --git a/src/Data/Matrix/AsXYZ/Plain.hs b/src/Data/Matrix/AsXYZ/Plain.hs
--- a/src/Data/Matrix/AsXYZ/Plain.hs
+++ b/src/Data/Matrix/AsXYZ/Plain.hs
@@ -6,7 +6,7 @@
 Stability   : experimental
 Portability : ?
 
-Jones-Faithfull notation plain text printer.
+Jones-Faithful notation plain text printer.
 
 -}
 module Data.Matrix.AsXYZ.Plain (