diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 5048002f0887..b964a5c101ac 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1242,13 +1242,7 @@ self: super: {
   patch = doJailbreak super.patch;
 
   # Tests disabled and broken override needed because of missing lib chrome-test-utils: https://github.com/reflex-frp/reflex-dom/issues/392
-  reflex-dom-core = doDistribute (unmarkBroken (dontCheck (appendPatch (doJailbreak super.reflex-dom-core) (pkgs.fetchpatch {
-    url = https://github.com/reflex-frp/reflex-dom/commit/6aed7b7ebb70372778f1a29a724fcb4de815ba04.patch;
-    sha256 = "1g7lgwj7rpziilif2gian412iy05gqbzwx9w0m6ajq3clxs5zs7l";
-    stripLen = 2;
-    extraPrefix = "";
-    includes = ["reflex-dom-core.cabal" ];
-  }))));
+  reflex-dom-core = doDistribute (unmarkBroken (dontCheck (doJailbreak super.reflex-dom-core)));
 
   # Tests disabled and broken override needed because of missing lib chrome-test-utils: https://github.com/reflex-frp/reflex-dom/issues/392
   reflex-dom = appendPatch super.reflex-dom (pkgs.fetchpatch {
@@ -1475,14 +1469,6 @@ self: super: {
   # https://github.com/obsidiansystems/dependent-sum/issues/55
   dependent-sum = doJailbreak super.dependent-sum;
 
-  # Overspecified constraint on 'constraints'. Kinda funny, huh?
-  dependent-sum-aeson-orphans = appendPatch (doJailbreak super.dependent-sum-aeson-orphans) (pkgs.fetchpatch {
-    # 2020-11-18: https://github.com/obsidiansystems/dependent-sum-aeson-orphans/pull/9
-    # Bump version bounds for ghc 8.10
-    url = https://github.com/obsidiansystems/dependent-sum-aeson-orphans/commit/e1f5898116222a1bc557d41f3395066f83736093.patch;
-    sha256 = "01fj29xdblxpz4drasaygf9875fipylpj8w164lb0cszd1vmqwnb";
-  });
-
   # 2020-11-18: https://github.com/srid/rib/issues/169
   # aeson bound out of sync
   rib-core = doJailbreak super.rib-core;
@@ -1491,20 +1477,8 @@ self: super: {
   # base upper bound is incompatible with ghc 8.10
   neuron = doJailbreak super.neuron;
 
-  reflex = dontCheck (doJailbreak (appendPatches super.reflex [
-    # https://github.com/reflex-frp/reflex/pull/444
-    # Fixes for ghc 8.10
-    (pkgs.fetchpatch {
-      url = https://github.com/reflex-frp/reflex/commit/d230632427fc1b7031163567c97f20050610c122.patch;
-      sha256 = "0gafqqi6q16m5y4mrc2f7lhahmazvcbiadn2v84y9p3zvx2v26xy";
-    })
-    # https://github.com/reflex-frp/reflex/pull/444
-    # Bound bumps for ghc 8.10
-    (pkgs.fetchpatch {
-      url = https://patch-diff.githubusercontent.com/raw/reflex-frp/reflex/pull/448.patch;
-      sha256 = "0a8gcq9g8dyyafkvs54mi3fnisff20r0x0qzmhxcp9md61nkf7gq";
-    })
-  ]));
+  # 2020-04-16: https://github.com/reflex-frp/reflex/issues/449
+  reflex = dontCheck (doJailbreak super.reflex);
 
   # 2020-11-19: jailbreaking because of pretty-simple bound out of date
   # https://github.com/kowainik/stan/issues/408