diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3be797d21..12da6ee55 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,11 +11,11 @@ cache:
     - _ccache/
 
 variables:
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v26"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v27"
   COVERITY_IMAGE: "registry.gitlab.gnome.org/gnome/glib/coverity:v7"
   DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v19"
   ALPINE_IMAGE: "registry.gitlab.gnome.org/gnome/glib/alpine:v3"
-  MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v15"
+  MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v16"
   MESON_TEST_TIMEOUT_MULTIPLIER: 4
   G_MESSAGES_DEBUG: all
   MESON_COMMON_OPTIONS: "--buildtype debug --wrap-mode=nodownload --fatal-meson-warnings"
diff --git a/.gitlab-ci/fedora.Dockerfile b/.gitlab-ci/fedora.Dockerfile
index 3713cc357..f13f0427e 100644
--- a/.gitlab-ci/fedora.Dockerfile
+++ b/.gitlab-ci/fedora.Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:37
+FROM fedora:39
 
 RUN dnf -y update \
  && dnf -y install \
diff --git a/.gitlab-ci/mingw.Dockerfile b/.gitlab-ci/mingw.Dockerfile
index d688a35a1..fde9550d0 100644
--- a/.gitlab-ci/mingw.Dockerfile
+++ b/.gitlab-ci/mingw.Dockerfile
@@ -1,4 +1,4 @@
-FROM registry.gitlab.gnome.org/gnome/glib/fedora:v25
+FROM registry.gitlab.gnome.org/gnome/glib/fedora:v27
 
 USER root
 
diff --git a/docs/supported-platforms.md b/docs/supported-platforms.md
index f883f74b2..baaef70a4 100644
--- a/docs/supported-platforms.md
+++ b/docs/supported-platforms.md
@@ -38,8 +38,8 @@ GLib is regularly built on at least the following systems:
  * FreeBSD: https://wiki.gnome.org/Projects/Jhbuild/FreeBSD
  * openSUSE: https://build.opensuse.org/package/show/GNOME:Factory/glib2
  * CI runners, https://gitlab.gnome.org/GNOME/glib/blob/main/.gitlab-ci.yml:
-   - Fedora (34, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/fedora.Dockerfile)
-   - Debian (Bullseye, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/debian-stable.Dockerfile)
+   - Fedora (39, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/fedora.Dockerfile)
+   - Debian (Bookworm, https://gitlab.gnome.org/GNOME/glib/-/blob/main/.gitlab-ci/debian-stable.Dockerfile)
    - Windows (MinGW64)
    - Windows (msys2-mingw32 and msys2-clang64; msys2 is a rolling release distribution)
    - Windows (Visual Studio 2017, and a static linking version)