diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index fb5a70eb6fac..ee94b13bfbe3 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1311,10 +1311,6 @@ self: super: {
   gi-gdkx11 = self.gi-gdkx11_3_0_11;
   gi-dbusmenugtk3 = self.gi-dbusmenugtk3_0_4_10;
 
-  # 2021-05-17: Needs some manual patching to be compatible with haskell-gi-base 0.25
-  # Created upstream PR @ https://github.com/ghcjs/jsaddle/pull/119
-  jsaddle-webkit2gtk = appendPatch super.jsaddle-webkit2gtk ./patches/jsaddle-webkit2gtk.patch;
-
   # Missing -Iinclude parameter to doc-tests (pull has been accepted, so should be resolved when 0.5.3 released)
   # https://github.com/lehins/massiv/pull/104
   massiv = dontCheck super.massiv;
diff --git a/pkgs/development/haskell-modules/patches/jsaddle-webkit2gtk.patch b/pkgs/development/haskell-modules/patches/jsaddle-webkit2gtk.patch
deleted file mode 100644
index 33c276926f4b..000000000000
--- a/pkgs/development/haskell-modules/patches/jsaddle-webkit2gtk.patch
+++ /dev/null
@@ -1,65 +0,0 @@
-From 09f44aa3271390c14f92a3f196ab2ba475b4907f Mon Sep 17 00:00:00 2001
-From: Malte Brandy <malte.brandy@maralorn.de>
-Date: Fri, 14 Aug 2020 17:52:28 +0200
-Subject: [PATCH 1/2] jsaddle-webkit2gtk: Bump haskell-gi-base upper bound
-
----
- jsaddle-webkit2gtk/jsaddle-webkit2gtk.cabal | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/jsaddle-webkit2gtk/jsaddle-webkit2gtk.cabal b/jsaddle-webkit2gtk/jsaddle-webkit2gtk.cabal
-index 93d0b77..60c2312 100644
---- a/jsaddle-webkit2gtk.cabal
-+++ b/jsaddle-webkit2gtk.cabal
-@@ -35,7 +35,7 @@ library
-         gi-gtk >=3.0.17 && <3.1,
-         gi-webkit2 >=4.0.14 && <4.1,
-         gi-javascriptcore >=4.0.14 && <4.1,
--        haskell-gi-base >=0.20 && <0.24,
-+        haskell-gi-base >=0.20 && <0.26,
-         haskell-gi-overloading >=0.0 && < 2.0,
-         jsaddle >=0.9.4.0 && <0.10,
-         text >=1.2.1.3 && <1.3,
-
-From f8427480ca827b2bee1d9b33dfa6118e14fe2924 Mon Sep 17 00:00:00 2001
-From: Malte Brandy <malte.brandy@maralorn.de>
-Date: Fri, 14 Aug 2020 18:10:26 +0200
-Subject: [PATCH 2/2] Locally define noAdjustment and noCancellable
-
-Those two convenience definitions disappeared from gi-gio and gi-gtk in
-newer versions.
----
- .../src/Language/Javascript/JSaddle/WebKitGTK.hs       | 10 ++++++++--
- 1 file changed, 8 insertions(+), 2 deletions(-)
-
-diff --git a/jsaddle-webkit2gtk/src/Language/Javascript/JSaddle/WebKitGTK.hs b/jsaddle-webkit2gtk/src/Language/Javascript/JSaddle/WebKitGTK.hs
-index 898dac2..5249477 100644
---- a/src/Language/Javascript/JSaddle/WebKitGTK.hs
-+++ b/src/Language/Javascript/JSaddle/WebKitGTK.hs
-@@ -55,11 +55,11 @@ import GI.GLib (timeoutAdd, idleAdd, pattern PRIORITY_HIGH, pattern PRIORITY_DEF
- import qualified GI.Gtk as Gtk (main, init)
- import GI.Gtk
-        (windowSetPosition, windowSetDefaultSize, windowNew,
--        scrolledWindowNew, noAdjustment, containerAdd,
-+        scrolledWindowNew, Adjustment, containerAdd,
-         WindowType(..), WindowPosition(..), widgetDestroy,
-         widgetGetToplevel, widgetShowAll, onWidgetDestroy,
-         mainQuit)
--import GI.Gio (noCancellable)
-+import GI.Gio (Cancellable)
- import GI.JavaScriptCore (valueToString)
- import GI.WebKit2
-        (scriptDialogPromptSetText, scriptDialogPromptGetDefaultText,
-@@ -82,6 +82,12 @@ import Language.Javascript.JSaddle (JSM, Results, Batch)
- import Language.Javascript.JSaddle.Run (runJavaScript)
- import Language.Javascript.JSaddle.Run.Files (initState, runBatch, ghcjsHelpers)
- 
-+noAdjustment :: Maybe Adjustment
-+noAdjustment = Nothing
-+
-+noCancellable :: Maybe Cancellable
-+noCancellable = Nothing
-+
- quitWebView :: WebView -> IO ()
- quitWebView wv = postGUIAsync $ do w <- widgetGetToplevel wv --TODO: Shouldn't this be postGUISync?
-                                    widgetDestroy w