diff --git a/.gitignore b/.gitignore
index 97ff6ec..f8ee366 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,3 +41,4 @@ ibus-m17n-1.3.0.tar.gz
 /ibus-m17n-1.4.34.tar.gz
 /ibus-m17n-1.4.35.tar.gz
 /ibus-m17n-1.4.36.tar.gz
+/ibus-m17n-1.4.37.tar.gz
diff --git a/ibus-m17n.spec b/ibus-m17n.spec
index b4cedd6..01f7545 100644
--- a/ibus-m17n.spec
+++ b/ibus-m17n.spec
@@ -1,7 +1,7 @@
 %global require_ibus_version 1.4.0
 
 Name:       ibus-m17n
-Version:    1.4.36
+Version:    1.4.37
 Release:    %autorelease
 Summary:    The M17N engine for IBus platform
 License:    GPL-2.0-or-later
@@ -11,7 +11,7 @@ Source0:    https://github.com/ibus/%{name}/archive/%{version}/%{name}-%{version
 BuildRequires:  gettext-devel >= 0.19
 BuildRequires:  libtool
 BuildRequires:  m17n-lib-devel
-BuildRequires:  gtk3-devel
+BuildRequires:  gtk4-devel
 BuildRequires:  ibus-devel >= %{require_ibus_version}
 BuildRequires:  desktop-file-utils
 BuildRequires:  libappstream-glib
@@ -28,7 +28,7 @@ the input table maps from m17n-db.
 %setup -q
 
 %build
-%configure --disable-static --with-gtk=3.0
+%configure --disable-static --with-gtk=4.0
 # make -C po update-gmo
 %{make_build}
 
diff --git a/sources b/sources
index 858c5e3..c57da11 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ibus-m17n-1.4.36.tar.gz) = 6c839500458ce93d43ed36c30f1b38546cf70440ad246befb835d05b7bbaf90519a23586dc3bebe0c95961e034d181ec5acd25091a8de723c056c159b53e76e5
+SHA512 (ibus-m17n-1.4.37.tar.gz) = fde658bf6be122345da3ea7efbf331dec47092a241ffd39a4d8c9dab514ebb7d1e48a8c391788752133f5b56fcf20f5e9424859cb926662929289cc3a46b7479