diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 1.5.8
+
++ Depend on haskell-gi >= 0.26.9 (see [issue 439](https://github.com/haskell-gi/haskell-gi/issues/439))
+
 ### 1.5.7
 
 + Bump base lower bound
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-ibus-1.5.7/docs/GI-IBus.html](https://hackage.haskell.org/package/gi-ibus-1.5.7/docs/GI-IBus.html)
+[https://hackage.haskell.org/package/gi-ibus-1.5.8/docs/GI-IBus.html](https://hackage.haskell.org/package/gi-ibus-1.5.8/docs/GI-IBus.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
@@ -12,7 +12,7 @@
   where name = "IBus"
         version = "1.0"
         pkgName = "gi-ibus"
-        pkgVersion = "1.5.7"
+        pkgVersion = "1.5.8"
         overridesFile = Nothing
         verbose = False
         outputDir = Nothing
diff --git a/gi-ibus.cabal b/gi-ibus.cabal
--- a/gi-ibus.cabal
+++ b/gi-ibus.cabal
@@ -1,5 +1,5 @@
 name:                 gi-ibus
-version:              1.5.7
+version:              1.5.8
 synopsis:             IBus bindings
 description:          Bindings for IBus, autogenerated by haskell-gi.
 homepage:             https://github.com/haskell-gi/haskell-gi
@@ -16,7 +16,7 @@
 custom-setup
       setup-depends: base >= 4.11 && < 5,
                      Cabal >= 1.24 && < 4,
-                     haskell-gi >= 0.26 && < 0.27,
+                     haskell-gi >= 0.26.9 && < 0.27,
                      gi-gio == 2.0.*,
                      gi-gobject == 2.0.*,
                      gi-glib == 2.0.*
@@ -30,7 +30,7 @@
       pkgconfig-depends: ibus-1.0 >= 1.5 && < 1.6
       build-depends: base >= 4.7 && <5,
                      haskell-gi-base >= 0.26 && < 0.27,
-                     haskell-gi >= 0.26 && < 0.27,
+                     haskell-gi >= 0.26.9 && < 0.27,
                      haskell-gi-overloading < 1.1,
                      gi-gio == 2.0.*,
                      gi-gobject == 2.0.*,