diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 2.0.29
+
++ Update to haskell-gi(-base)-0.26
+
 ### 2.0.28
 
 + Update to haskell-gi(-base)-0.25
diff --git a/Gio.overrides b/Gio.overrides
--- a/Gio.overrides
+++ b/Gio.overrides
@@ -24,6 +24,10 @@
 # versions.
 set-attr Gio/InetAddress/new_from_string/@return-value nullable 1
 
+# Return value is nullable, but it is only marked as such in recent
+# versions.
+set-attr Gio/DBusNodeInfo/lookup_interface/@return-value nullable 1
+
 # These are included by mistake in the introspection data of
 # glib-2.60.0, but they are linux-specific.
 # See https://github.com/haskell-gi/haskell-gi/issues/218
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-gio-2.0.28/docs/GI-Gio.html](https://hackage.haskell.org/package/gi-gio-2.0.28/docs/GI-Gio.html)
+[https://hackage.haskell.org/package/gi-gio-2.0.29/docs/GI-Gio.html](https://hackage.haskell.org/package/gi-gio-2.0.29/docs/GI-Gio.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
@@ -11,7 +11,7 @@
   where name = "Gio"
         version = "2.0"
         pkgName = "gi-gio"
-        pkgVersion = "2.0.28"
+        pkgVersion = "2.0.29"
         overridesFile = Just "Gio.overrides"
         verbose = False
         outputDir = Nothing
diff --git a/gi-gio.cabal b/gi-gio.cabal
--- a/gi-gio.cabal
+++ b/gi-gio.cabal
@@ -1,11 +1,11 @@
 name:                 gi-gio
-version:              2.0.28
+version:              2.0.29
 synopsis:             Gio bindings
 description:          Bindings for Gio, 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-gobject == 2.0.*,
                      gi-glib == 2.0.*
 
@@ -28,8 +28,8 @@
 
       pkgconfig-depends: gio-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-gobject == 2.0.*,
                      gi-glib == 2.0.*,