diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+### 3.0.15
+
++ Depend on haskell-gi >= 0.26.9 (see [issue 439](https://github.com/haskell-gi/haskell-gi/issues/439))
+
 ### 3.0.14
 
 + 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-wnck-3.0.14/docs/GI-Wnck.html](https://hackage.haskell.org/package/gi-wnck-3.0.14/docs/GI-Wnck.html)
+[https://hackage.haskell.org/package/gi-wnck-3.0.15/docs/GI-Wnck.html](https://hackage.haskell.org/package/gi-wnck-3.0.15/docs/GI-Wnck.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
@@ -16,7 +16,7 @@
   where name = "Wnck"
         version = "3.0"
         pkgName = "gi-wnck"
-        pkgVersion = "3.0.14"
+        pkgVersion = "3.0.15"
         overridesFile = Just "Wnck.overrides"
         verbose = False
         outputDir = Nothing
diff --git a/gi-wnck.cabal b/gi-wnck.cabal
--- a/gi-wnck.cabal
+++ b/gi-wnck.cabal
@@ -1,5 +1,5 @@
 name:                 gi-wnck
-version:              3.0.14
+version:              3.0.15
 synopsis:             Wnck bindings
 description:          Bindings for wnck, 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-cairo == 1.0.*,
                      gi-gdk == 3.0.*,
@@ -34,7 +34,7 @@
       pkgconfig-depends: libwnck-3.0
       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-cairo == 1.0.*,