diff --git a/pkgs/development/libraries/haskell/ghc-events/default.nix b/pkgs/development/libraries/haskell/ghc-events/default.nix
index 23af9bfa7fe..9ebe3e94041 100644
--- a/pkgs/development/libraries/haskell/ghc-events/default.nix
+++ b/pkgs/development/libraries/haskell/ghc-events/default.nix
@@ -1,13 +1,12 @@
-{cabal, binary, mtl}:
+{ cabal, binary, mtl }:
 
-cabal.mkDerivation (self : {
+cabal.mkDerivation (self: {
   pname = "ghc-events";
-  version = "0.2.0.1";
-  sha256 = "18cb82ebe143f58a25bf32ee88118a8bfb333b67a53285c2550e866f2afebbc6";
-  propagatedBuildInputs = [binary mtl];
-  preConfigure = ''
-    sed -i 's|\(containers.*\) && < 0.4|\1|' ${self.pname}.cabal
-  '';
+  version = "0.3.0.1";
+  sha256 = "08jnri6cwybg8b2f53rn8y1xzcpz32r0svahcw01g837p07mcpla";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ binary mtl ];
   meta = {
     description = "Library and tool for parsing .eventlog files from GHC";
     license = self.stdenv.lib.licenses.bsd3;
diff --git a/pkgs/development/tools/haskell/threadscope/default.nix b/pkgs/development/tools/haskell/threadscope/default.nix
index 7787ea203ee..35b3dec9c86 100644
--- a/pkgs/development/tools/haskell/threadscope/default.nix
+++ b/pkgs/development/tools/haskell/threadscope/default.nix
@@ -1,15 +1,15 @@
-{ cabal, binary, cairo, ghcEvents, glade, gtk, mtl }:
+{ cabal, binary, cairo, ghcEvents, glib, gtk, mtl, pango }:
 
 cabal.mkDerivation (self: {
   pname = "threadscope";
-  version = "0.1.3";
-  sha256 = "1vak3624vrnkfvwxzfw5hkc0552v213jb874f6q536g5vhjjxpih";
+  version = "0.2.0";
+  sha256 = "0b8lc8han4d90wgzliy80l1gbkm09gg6qxsn37blj41wzl6yzr9k";
   isLibrary = false;
   isExecutable = true;
-  buildDepends = [ binary cairo ghcEvents glade gtk mtl ];
+  buildDepends = [ binary cairo ghcEvents glib gtk mtl pango ];
   configureFlags = "--ghc-options=-rtsopts";
   meta = {
-    description = "A graphical thread profiler";
+    description = "A graphical tool for profiling parallel Haskell programs";
     license = self.stdenv.lib.licenses.bsd3;
     platforms = self.ghc.meta.platforms;
     maintainers = [