diff --git a/pkgs/development/libraries/haskell/diagrams/core.nix b/pkgs/development/libraries/haskell/diagrams/core.nix
index dbbc3c030b5..153f109d14b 100644
--- a/pkgs/development/libraries/haskell/diagrams/core.nix
+++ b/pkgs/development/libraries/haskell/diagrams/core.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "diagrams-core";
-  version = "1.2";
-  sha256 = "0qlkick9ppwaignh179w65gmiq5as1nsi1ymficdw1p0jldi5f51";
+  version = "1.2.0.1";
+  sha256 = "01rzd2zdg0pv7b299z6s6i6l6xggiszb2qs00vh5dbss295n1sps";
   buildDepends = [
     dualTree lens MemoTrie monoidExtras newtype semigroups vectorSpace
     vectorSpacePoints