diff --git a/pkgs/development/python-modules/grammalecte/default.nix b/pkgs/development/python-modules/grammalecte/default.nix
index 526073edd29b..a3de4d3f7bc1 100644
--- a/pkgs/development/python-modules/grammalecte/default.nix
+++ b/pkgs/development/python-modules/grammalecte/default.nix
@@ -7,17 +7,16 @@
 
 buildPythonPackage rec {
   pname = "grammalecte";
-  version = "0.5.17.2";
+  version = "0.5.18";
   name = "${pname}-${version}";
 
   src = fetchurl {
     url = "http://www.dicollecte.org/grammalecte/zip/Grammalecte-fr-v${version}.zip";
-    sha256 = "1g5i978cdz14rfdi4z2ayb2c1rf8cq991slwsv0krhpvl9ripl9c";
+    sha256 = "0izfsqsj8w4awhmwmn4x8wwpqsmqbnfvfafzk93i6yj0l3fn3i97";
   };
 
   propagatedBuildInputs = [ bottle ];
 
-  patches = [ ./spellchecker.patch ];
   preBuild = "cd ..";
   postInstall = ''
     mkdir $out/bin
diff --git a/pkgs/development/python-modules/grammalecte/spellchecker.patch b/pkgs/development/python-modules/grammalecte/spellchecker.patch
deleted file mode 100644
index 151eaa62f4a5..000000000000
--- a/pkgs/development/python-modules/grammalecte/spellchecker.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/spellchecker.py b/spellchecker.py
-index 37ac0ea..a60b3a9 100644
---- a/spellchecker.py
-+++ b/spellchecker.py
-@@ -2,7 +2,7 @@
- # Wrapper for the IBDAWG class.
- # Useful to check several dictionaries at once.
- 
--import ibdawg
-+from grammalecte import ibdawg
- 
- 
- dDictionaries = {