diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 2.0.27
+
++ Update to haskell-gi(-base)-0.26
+
 ### 2.0.26
 
 + Update to haskell-gi(-base)-0.25
diff --git a/GObject.overrides b/GObject.overrides
--- a/GObject.overrides
+++ b/GObject.overrides
@@ -22,6 +22,13 @@
 # There is a typo in the introspection data
 set-attr GObject/ParamSpec glib:unref-func g_param_spec_unref
 
+# Work around problem with newer versions where the closure attribute
+# points to the closure arg.
+set-attr GObject/signal_handlers_unblock_matched/@parameters/data closure -1
+set-attr GObject/signal_handlers_block_matched/@parameters/data closure -1
+set-attr GObject/signal_handlers_disconnect_matched/@parameters/data closure -1
+set-attr GObject/signal_handler_find/@parameters/data closure -1
+
 # Generated from gobject 2.48.0 with xsltproc Nullable.xslt GObject-2.0.gir
 set-attr GObject/BindingTransformFunc/@parameters/user_data nullable 1
 set-attr GObject/CClosure/marshal_BOOLEAN__BOXED_BOXED/@parameters/invocation_hint nullable 1
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Documentation
 Autogenerated documentation for this package can be found at
 
-[https://hackage.haskell.org/package/gi-gobject-2.0.26/docs/GI-GObject.html](https://hackage.haskell.org/package/gi-gobject-2.0.26/docs/GI-GObject.html)
+[https://hackage.haskell.org/package/gi-gobject-2.0.27/docs/GI-GObject.html](https://hackage.haskell.org/package/gi-gobject-2.0.27/docs/GI-GObject.html)
 
 For general documentation on using [haskell-gi](https://github.com/haskell-gi/haskell-gi) based bindings, see [the project page](https://github.com/haskell-gi/haskell-gi) or [the Wiki](https://github.com/haskell-gi/haskell-gi/wiki).
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -10,7 +10,7 @@
   where name = "GObject"
         version = "2.0"
         pkgName = "gi-gobject"
-        pkgVersion = "2.0.26"
+        pkgVersion = "2.0.27"
         overridesFile = Just "GObject.overrides"
         verbose = False
         outputDir = Nothing
diff --git a/gi-gobject.cabal b/gi-gobject.cabal
--- a/gi-gobject.cabal
+++ b/gi-gobject.cabal
@@ -1,11 +1,11 @@
 name:                 gi-gobject
-version:              2.0.26
+version:              2.0.27
 synopsis:             GObject bindings
 description:          Bindings for GObject, autogenerated by haskell-gi.
 homepage:             https://github.com/haskell-gi/haskell-gi
 license:              LGPL-2.1
 license-file:         LICENSE
-author:               Will Thompson, Iñaki García Etxebarria and Jonas Platte
+author:               Iñaki García Etxebarria
 maintainer:           Iñaki García Etxebarria
 category:             Bindings
 build-type:           Custom
@@ -16,7 +16,7 @@
 custom-setup
       setup-depends: base >= 4.9 && < 5,
                      Cabal >= 1.24,
-                     haskell-gi >= 0.25 && < 0.26,
+                     haskell-gi >= 0.26 && < 0.27,
                      gi-glib == 2.0.*
 
 library
@@ -27,8 +27,8 @@
 
       pkgconfig-depends: gobject-2.0
       build-depends: base >= 4.7 && <5,
-                     haskell-gi-base >= 0.25 && < 0.26,
-                     haskell-gi >= 0.25 && < 0.26,
+                     haskell-gi-base >= 0.26 && < 0.27,
+                     haskell-gi >= 0.26 && < 0.27,
                      haskell-gi-overloading < 1.1,
                      gi-glib == 2.0.*,
                      bytestring >= 0.10 && < 1,