diff --git a/patching/patches/lens-4.1.2.patch b/patching/patches/lens-4.1.2.patch
deleted file mode 100644
index 01a67a71..00000000
--- a/patching/patches/lens-4.1.2.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -ru orig/lens.cabal new/lens.cabal
---- orig/lens.cabal	2014-05-16 09:14:13.877832405 +0300
-+++ new/lens.cabal	2014-05-16 09:14:13.000000000 +0300
-@@ -201,7 +201,7 @@
-     primitive                 >= 0.4.0.1  && < 0.6,
-     profunctors               >= 4        && < 5,
-     reflection                >= 1.1.6    && < 2,
--    scientific                >= 0.2      && < 0.3,
-+    scientific                >= 0.2      && < 0.4,
-     semigroupoids             >= 4        && < 5,
-     semigroups                >= 0.8.4    && < 1,
-     split                     >= 0.2      && < 0.3,