diff --git a/GIRepository.overrides b/GIRepository.overrides
new file mode 100644
--- /dev/null
+++ b/GIRepository.overrides
@@ -0,0 +1,33 @@
+namespace GIRepository
+
+# Generated from gobject-introspection 1.48.0 with xsltproc Nullable.xslt GIRepository-2.0.gir
+set-attr GIRepository/ObjectInfoGetValueFunction/@return-value nullable 1
+set-attr GIRepository/ObjectInfoRefFunction/@return-value nullable 1
+set-attr GIRepository/ObjectInfoRefFunction/@parameters/object nullable 1
+set-attr GIRepository/ObjectInfoSetValueFunction/@parameters/object nullable 1
+set-attr GIRepository/ObjectInfoUnrefFunction/@parameters/object nullable 1
+set-attr GIRepository/Repository/enumerate_versions/@parameters/repository nullable 1
+set-attr GIRepository/Repository/find_by_error_domain/@parameters/repository nullable 1
+set-attr GIRepository/Repository/find_by_gtype/@parameters/repository nullable 1
+set-attr GIRepository/Repository/find_by_name/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_c_prefix/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_dependencies/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_immediate_dependencies/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_info/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_loaded_namespaces/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_n_infos/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_shared_library/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_typelib_path/@parameters/repository nullable 1
+set-attr GIRepository/Repository/get_version/@parameters/repository nullable 1
+set-attr GIRepository/Repository/is_registered/@parameters/repository nullable 1
+set-attr GIRepository/Repository/is_registered/@parameters/version nullable 1
+set-attr GIRepository/Repository/load_typelib/@parameters/repository nullable 1
+set-attr GIRepository/Repository/require/@parameters/repository nullable 1
+set-attr GIRepository/Repository/require/@parameters/version nullable 1
+set-attr GIRepository/Repository/require_private/@parameters/repository nullable 1
+set-attr GIRepository/Repository/require_private/@parameters/version nullable 1
+set-attr GIRepository/Typelib/symbol/@parameters/symbol nullable 1
+set-attr GIRepository/callable_info_invoke/@parameters/function nullable 1
+set-attr GIRepository/field_info_get_field/@parameters/mem nullable 1
+set-attr GIRepository/field_info_set_field/@parameters/mem nullable 1
+set-attr GIRepository/vfunc_info_get_address/@return-value nullable 1
diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -6,6 +6,6 @@
 main = setupHaskellGIBinding name version verbose overridesFile outputDir
   where name = "GIRepository"
         version = "2.0"
-        overridesFile = Nothing
+        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:              1.0.4
+version:              1.0.5
 synopsis:             GIRepository (gobject-introspection) bindings
 description:          Bindings for GIRepository, autogenerated by haskell-gi.
 homepage:             https://github.com/haskell-gi/haskell-gi
@@ -11,8 +11,11 @@
 build-type:           Custom
 cabal-version:        >= 1.24
 
+extra-source-files: GIRepository.overrides
+
 custom-setup
       setup-depends: base >= 4.7 && < 5,
+                     Cabal >= 1.24,
                      haskell-gi >= 0.17.3 && < 1
 
 library