diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index bb2150f06c48a003f67ec509c797cfa584d012d9..4beb5c5e9a6d427309a9a0422bd78bc8997e268c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -14,8 +14,8 @@ flatpak:
   script:
   - apk update && apk add flatpak-builder
   - flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
-  - flatpak install -y flathub org.gnome.Platform 42
-  - flatpak install -y flathub org.gnome.Sdk 42
+  - flatpak install -y flathub org.gnome.Platform 43
+  - flatpak install -y flathub org.gnome.Sdk 43
   - flatpak-builder --stop-at=${FLATPAK_MODULE} app ${MANIFEST_PATH}
   - flatpak build app meson --prefix=/app ${MESON_ARGS} _build
   - flatpak build app ninja -C _build install
diff --git a/build-aux/uk.me.bcowan.Rugby.yml b/build-aux/uk.me.bcowan.Rugby.yml
index d072d40862b55e3532b8ab974a8b3cc08a61c791..a2365e562d545a79bcda6e9ecbdc9993caf19051 100644
--- a/build-aux/uk.me.bcowan.Rugby.yml
+++ b/build-aux/uk.me.bcowan.Rugby.yml
@@ -4,7 +4,7 @@
 
 app-id: uk.me.bcowan.Rugby
 runtime: org.gnome.Platform
-runtime-version: "42"
+runtime-version: "43"
 sdk: org.gnome.Sdk
 command: rugby