diff --git a/PKGBUILD b/PKGBUILD
index 868947a61..0e7e62b23 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,9 +1,9 @@
 # Maintainer: Yukari Chiba <i@0x7f.cc>
 
 pkgname=python-gobject
-pkgver=3.54.3
-_commit_pycapi_compat=632d1aa0c4be6c67498d6b97630ddd7d7eb0f90a
-_commit_g_intro_tests=ddd662bb9cdc29f047b239789fb7e56e68fa66bb
+pkgver=3.55.0
+_commit_pycapi_compat=22811c3f0e69908894d2bd724f572b32667f2141
+_commit_g_intro_tests=b8d50f8c75479db3f846c877dbdec7eca26949f7
 pkgrel=1
 pkgdesc="Python bindings for GLib/GObject/GIO/GTK"
 url="https://pygobject.gnome.org/"
@@ -25,9 +25,9 @@ optdepends=('cairo: Cairo bindings')
 source=("https://gitlab.gnome.org/GNOME/pygobject/-/archive/$pkgver/pygobject-$pkgver.tar.gz"
 	"git+https://github.com/python/pythoncapi-compat.git#commit=$_commit_pycapi_compat"
 	"git+https://gitlab.gnome.org/GNOME/gobject-introspection-tests.git#commit=$_commit_g_intro_tests")
-sha256sums=('7dff932af05c988dfcaf985f14d6664aeff27cd7c0eb2b2428f8cdb169a3d96e'
-            'c485f20e20d48c9e1a65f419848d5ce2a42939d858dd7345aaedd7eb4f4d3151'
-            '6ef25921088eb377e1046b770c4b784992dcd0d533adccc18bef69addd93d226')
+sha256sums=('9b853d963f37e2043313c807ef4a68ae1d9e3e45d8820fbe4d031aa8519545eb'
+            'e292dd14afcecab95dab2aaf1401323b303fb9ffe130384d30997320acfa0785'
+            'd87626d7fb554e67b80ddc60dc1a258b028a4b0cd943573449886fcbb18a77f6')
 
 build() {
   MESON_PACKAGE_CACHE_DIR="$srcdir" \
@@ -36,6 +36,10 @@ build() {
 }
 
 check() {
+  # The testsuite automatically detects existence of GTK3, if present, it will
+  # try to initialize gtk, which isn't possible in build environment even with
+  # help of a headless weston daemon as GTK3 always requires a seat with
+  # keyboard to initialize. So tests must be run without GTK3 installed.
   meson test -C build -t 10 --print-errorlogs
 }