diff --git a/.travis.yml b/.travis.yml
index 0336662..4166c71 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,10 +6,10 @@ install:
   - curl https://dl.google.com/android/repository/commandlinetools-linux-6200805_latest.zip --output $HOME/android-sdk.zip
   - unzip -qq $HOME/android-sdk.zip -d $HOME/android-sdk
   - export ANDROID_SDK_HOME=$HOME/android-sdk
-  - export ANDROID_NDK_HOME=$ANDROID_SDK_HOME/ndk/21.0.6113669
+  - export ANDROID_NDK_HOME=$ANDROID_SDK_HOME/ndk/21.1.6352462
   # Installing necessary components of Android SDK
   - function installAndroidComponent() { yes | ${ANDROID_SDK_HOME}/tools/bin/sdkmanager --sdk_root=${ANDROID_SDK_HOME} $1 > /dev/null; }
-  - installAndroidComponent "ndk;21.0.6113669"
+  - installAndroidComponent "ndk;21.1.6352462"
   - installAndroidComponent "cmake;3.10.2.4988404"
   # Installing meson, ninja and nasm that are necessary for libdav1d building
   - sudo apt-get install python3-pip python3-setuptools python3-wheel ninja-build
diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..029aaac
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Alexander Berezhnoi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
index b3d6c93..944ad67 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ The script also produces `ffmpeg` and `ffprobe` executables that can be used in
 
 The main focus of ffmpeg-android-maker is to prepare shared libraries for seamless integration into an Android project. The script prepares the `output` directory that is meant to be used. And it's not the only thing this project does.
 
-By default this script downloads and builds the FFmpeg **4.2.2**, but the version can be overridden.
+By default this script downloads and builds the FFmpeg **4.2.3**, but the version can be overridden.
 
 The details of how this script is implemented are described in this series of posts:
 * [Part 1](https://proandroiddev.com/a-story-about-ffmpeg-in-android-part-i-compilation-898e4a249422)
@@ -71,3 +71,7 @@ Certain external libraries require additional software to be installed. Check th
 **Test your script in a cloud**. This repository has CI integration and you can use it too for your own configurations. See details [here](https://github.com/Javernaut/ffmpeg-android-maker/wiki/Build-automation).
 
 **Text relocations monitoring**. After an assembling is finished you can look into stats/text-relocations.txt file. This file lists all \*.so files that were built and reports if any of them has text relocations. If you don't see any mentioning of 'TEXTREL' in the file, you are good. Otherwise, you will see exact binaries that have this problem. The Travis CI build will automatically fail if text relocations occur.
+
+## License
+
+The ffmpeg-android-maker's source code is available under the MIT license. See the `LICENSE.txt` file for more details.
\ No newline at end of file
diff --git a/scripts/libaom/download.sh b/scripts/libaom/download.sh
index c233fba..beba661 100755
--- a/scripts/libaom/download.sh
+++ b/scripts/libaom/download.sh
@@ -2,7 +2,7 @@
 
 source ${SCRIPTS_DIR}/common-functions.sh
 
-AOM_VERSION=v1.0.0-errata1-avif
+AOM_VERSION=v2.0.0
 
 downloadTarArchive \
   "libaom" \
diff --git a/scripts/libdav1d/download.sh b/scripts/libdav1d/download.sh
index 9697551..eaea41e 100755
--- a/scripts/libdav1d/download.sh
+++ b/scripts/libdav1d/download.sh
@@ -2,7 +2,7 @@
 
 source ${SCRIPTS_DIR}/common-functions.sh
 
-DAV1D_VERSION=0.6.0
+DAV1D_VERSION=0.7.0
 
 downloadTarArchive \
   "libdav1d" \
diff --git a/scripts/parse-arguments.sh b/scripts/parse-arguments.sh
index 0ab1d01..fd0d75e 100755
--- a/scripts/parse-arguments.sh
+++ b/scripts/parse-arguments.sh
@@ -9,7 +9,7 @@
 ABIS_TO_BUILD=()
 API_LEVEL=16
 SOURCE_TYPE=TAR
-SOURCE_VALUE=4.2.2
+SOURCE_VALUE=4.2.3
 BINUTILS=gnu
 EXTERNAL_LIBRARIES=()