diff --git a/.gitmodules b/.gitmodules
index 3d766dc76..541588bd4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -44,7 +44,7 @@
 [submodule "project/jni/application/openttd/src"]
 	path = project/jni/application/openttd/src
 	url = https://github.com/pelya/openttd-android.git
-	branch = 12
+	branch = 13
 	update = merge
 [submodule "project/jni/application/uae4all2"]
 	path = project/jni/application/uae4all2
diff --git a/project/jni/application/openttd/AndroidAppSettings.cfg b/project/jni/application/openttd/AndroidAppSettings.cfg
index 8e43ab026..3ab8afe80 100644
--- a/project/jni/application/openttd/AndroidAppSettings.cfg
+++ b/project/jni/application/openttd/AndroidAppSettings.cfg
@@ -7,10 +7,10 @@ AppName="OpenTTD"
 AppFullName=org.openttd.sdl
 
 # Application version code (integer)
-AppVersionCode=1300116
+AppVersionCode=1340120
 
 # Application user-visible version name (string)
-AppVersionName="13.0.rev116"
+AppVersionName="13.4.rev120"
 
 # Specify path to download application data in zip archive in the form "Description|URL|MirrorURL^Description2|URL2|MirrorURL2^...'
 # If you'll start Description with '!' symbol it will be enabled by default, '!!' will also hide the entry from the menu, so it cannot be disabled
@@ -22,7 +22,7 @@ AppVersionName="13.0.rev116"
 # The mount directory will be returned by calling getenv("ANDROID_OBB_MOUNT_DIR")
 # You can use .zip.xz archives for better compression, but you need to add 'lzma' to CompiledLibraries
 # Generate .zip.xz files like this: zip -0 -r data.zip your-data/* ; xz -8 data.zip
-AppDataDownloadUrl="!!Data files|openttd-data-13.0-0.zip.xz^!!Config file|:.openttd/openttd.cfg:openttd-1.4.0.30.cfg^!!!!MIDI music support|timidity.zip.xz^!!Internationalization files|icudt62l.zip.xz^!!Fonts|openttd-fonts.zip.xz"
+AppDataDownloadUrl="!!Data files|openttd-data-13.4-0.zip.xz^!!Config file|:.openttd/openttd.cfg:openttd-1.4.0.30.cfg^!!!!MIDI music support|timidity.zip.xz^!!Internationalization files|icudt62l.zip.xz^!!Fonts|openttd-fonts.zip.xz"
 
 # Reset SDL config when updating application to the new version (y) / (n)
 ResetSdlConfigForThisVersion=y
diff --git a/project/jni/application/openttd/pack-data.sh b/project/jni/application/openttd/pack-data.sh
index c9de76f21..176942d69 100755
--- a/project/jni/application/openttd/pack-data.sh
+++ b/project/jni/application/openttd/pack-data.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-VER=13.0-0
+VER=13.4-0
 ARCH=$1
 ANDROID_DATA_FULLPATH=$(realpath ./AndroidData/)