diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 340f1c604..2cc83923b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -230,7 +230,7 @@ jobs:
         with:
           repository: minetest/irrlicht
           path: lib/irrlichtmt/
-          ref: "1.9.0mt4"
+          ref: "1.9.0mt5"
 
       - name: Restore from cache and run vcpkg
         uses: lukka/run-vcpkg@v7
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 1f1772bf3..c0278a38c 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -22,7 +22,7 @@ on:
       - '.github/workflows/macos.yml'
 
 env:
-  IRRLICHT_TAG: 1.9.0mt4
+  IRRLICHT_TAG: 1.9.0mt5
   MINETEST_GAME_REPO: https://github.com/minetest/minetest_game.git
   MINETEST_GAME_BRANCH: master
   MINETEST_GAME_NAME: minetest_game
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 81007d7c7..c225bfcd4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,7 @@ stages:
   - deploy
 
 variables:
-  IRRLICHT_TAG: "1.9.0mt4"
+  IRRLICHT_TAG: "1.9.0mt5"
   MINETEST_GAME_REPO: "https://github.com/minetest/minetest_game.git"
   CONTAINER_IMAGE: registry.gitlab.com/$CI_PROJECT_PATH
 
diff --git a/util/buildbot/buildwin32.sh b/util/buildbot/buildwin32.sh
index bf5c9a0f2..e0c431711 100755
--- a/util/buildbot/buildwin32.sh
+++ b/util/buildbot/buildwin32.sh
@@ -45,7 +45,7 @@ done
 	echo "The compiler runtime DLLs could not be found, they might be missing in the final package."
 
 # Get stuff
-irrlicht_version=1.9.0mt4
+irrlicht_version=1.9.0mt5
 ogg_version=1.3.5
 openal_version=1.21.1
 vorbis_version=1.3.7
@@ -83,7 +83,7 @@ download () {
 # this distinction should be gotten rid of next time
 
 cd $libdir
-download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win32-dw2.zip" irrlicht-$irrlicht_version.zip
+download "https://github.com/minetest/irrlicht/releases/download/$irrlicht_version/win32.zip" irrlicht-$irrlicht_version.zip
 download "http://minetest.kitsunemimi.pw/dw2/zlib-$zlib_version-win32.zip"
 download "http://minetest.kitsunemimi.pw/zstd-$zstd_version-win32.zip"
 download "http://minetest.kitsunemimi.pw/libogg-$ogg_version-win32.zip"
diff --git a/util/buildbot/buildwin64.sh b/util/buildbot/buildwin64.sh
index 30920cf53..e79397be4 100755
--- a/util/buildbot/buildwin64.sh
+++ b/util/buildbot/buildwin64.sh
@@ -45,7 +45,7 @@ done
 	echo "The compiler runtime DLLs could not be found, they might be missing in the final package."
 
 # Get stuff
-irrlicht_version=1.9.0mt4
+irrlicht_version=1.9.0mt5
 ogg_version=1.3.5
 openal_version=1.21.1
 vorbis_version=1.3.7
diff --git a/util/ci/common.sh b/util/ci/common.sh
index 2802a004a..e372dc682 100644
--- a/util/ci/common.sh
+++ b/util/ci/common.sh
@@ -11,7 +11,7 @@ install_linux_deps() {
 		shift
 		pkgs+=(libirrlicht-dev)
 	else
-		wget "https://github.com/minetest/irrlicht/releases/download/1.9.0mt4/ubuntu-bionic.tar.gz"
+		wget "https://github.com/minetest/irrlicht/releases/download/1.9.0mt5/ubuntu-bionic.tar.gz"
 		sudo tar -xaf ubuntu-bionic.tar.gz -C /usr/local
 	fi