diff --git a/pkgs/development/libraries/haskell/engine-io-snap/default.nix b/pkgs/development/libraries/haskell/engine-io-snap/default.nix
index 07ccb6c71520..996b8ace9829 100644
--- a/pkgs/development/libraries/haskell/engine-io-snap/default.nix
+++ b/pkgs/development/libraries/haskell/engine-io-snap/default.nix
@@ -6,8 +6,8 @@
 
 cabal.mkDerivation (self: {
   pname = "engine-io-snap";
-  version = "1.0.0";
-  sha256 = "152hz2b9zbmjpp517g6kp7fs7kbvyil28dp6djqjlmp9fqkgckap";
+  version = "1.0.1";
+  sha256 = "1hw3gmi23fdcgvz817b95bf23wa7qyg10axsnvan5qxr73pwp5iv";
   buildDepends = [
     attoparsecEnumerator engineIo snapCore unorderedContainers
     websockets websocketsSnap
diff --git a/pkgs/development/libraries/haskell/engine-io/default.nix b/pkgs/development/libraries/haskell/engine-io/default.nix
index 7b7c6f0f3977..9684c7660fba 100644
--- a/pkgs/development/libraries/haskell/engine-io/default.nix
+++ b/pkgs/development/libraries/haskell/engine-io/default.nix
@@ -1,5 +1,3 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
 { cabal, aeson, async, attoparsec, base64Bytestring, either
 , monadLoops, mwcRandom, stm, text, transformers
 , unorderedContainers, vector, websockets
@@ -7,8 +5,8 @@
 
 cabal.mkDerivation (self: {
   pname = "engine-io";
-  version = "1.0.2";
-  sha256 = "1043q1ykih505i203nqjn0724ibb9wf26zc68fri9901vp88ryyn";
+  version = "1.1.0";
+  sha256 = "0l2jwgzi22ky13k9kmqhn15zyxyg5gr167rkywb458n1si4jr3jh";
   buildDepends = [
     aeson async attoparsec base64Bytestring either monadLoops mwcRandom
     stm text transformers unorderedContainers vector websockets
diff --git a/pkgs/development/libraries/haskell/socket-io/default.nix b/pkgs/development/libraries/haskell/socket-io/default.nix
index 324a2b046162..ff0b90c03e0f 100644
--- a/pkgs/development/libraries/haskell/socket-io/default.nix
+++ b/pkgs/development/libraries/haskell/socket-io/default.nix
@@ -1,13 +1,11 @@
-# This file was auto-generated by cabal2nix. Please do NOT edit manually!
-
 { cabal, aeson, attoparsec, engineIo, mtl, stm, text, transformers
 , unorderedContainers, vector
 }:
 
 cabal.mkDerivation (self: {
   pname = "socket-io";
-  version = "1.0.0";
-  sha256 = "1xvj2x6nr14wna0plivzbzkca2y4xw6bxhvc5mqjh664197r9jsx";
+  version = "1.0.1";
+  sha256 = "0257c5wf6b9rmprqq5q5d7fih4s2szwv98w16ggl61p8khf5d2qs";
   buildDepends = [
     aeson attoparsec engineIo mtl stm text transformers
     unorderedContainers vector