diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 5e43d516e911..c03825a0f4e8 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -736,7 +736,7 @@ self: super: {
           owner = "haskell-servant";
           repo = "servant";
           rev = "v${ver}";
-          sha256 = "0kqglih3rv12nmkzxvalhfaaafk4b2irvv9x5xmc48i1ns71y23l";
+          sha256 = "0xk3czk3jhqjxhy0g8r2248m8yxgvmqhgn955k92z0h7p02lfs89";
         }}/doc";
         # Needed after sphinx 1.7.9 -> 1.8.3
         postPatch = ''