diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 1.0.29
+
++ Depend on haskell-gi >= 0.26.9 (see [issue 439](https://github.com/haskell-gi/haskell-gi/issues/439))
+
 ### 1.0.28
 
 + 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-girepository-1.0.28/docs/GI-GIRepository.html](https://hackage.haskell.org/package/gi-girepository-1.0.28/docs/GI-GIRepository.html)
+[https://hackage.haskell.org/package/gi-girepository-1.0.29/docs/GI-GIRepository.html](https://hackage.haskell.org/package/gi-girepository-1.0.29/docs/GI-GIRepository.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 = "GIRepository"
         version = "2.0"
         pkgName = "gi-girepository"
-        pkgVersion = "1.0.28"
+        pkgVersion = "1.0.29"
         overridesFile = Just "GIRepository.overrides"
         verbose = False
         outputDir = Nothing
diff --git a/gi-girepository.cabal b/gi-girepository.cabal
--- a/gi-girepository.cabal
+++ b/gi-girepository.cabal
@@ -1,5 +1,5 @@
 name:                 gi-girepository
-version:              1.0.28
+version:              1.0.29
 synopsis:             GIRepository (gobject-introspection) bindings
 description:          Bindings for GIRepository, 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-glib == 2.0.*,
                      gi-gobject == 2.0.*
 
@@ -29,7 +29,7 @@
       pkgconfig-depends: gobject-introspection-1.0
       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-glib == 2.0.*,
                      gi-gobject == 2.0.*,