diff --git a/Jenkinsfile b/Jenkinsfile
index 4d3ca2b..89d8be3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -28,6 +28,9 @@ final String windowsSuffix = '-windows'
     - Musl cross-compiling toolchains (archives ending in "-cross" from https://musl.cc/#binaries) for x86_64, i686, armel, armhf and aarch64, unzipped into /usr/, along with soft links from /usr/bin/ to the binaries
     - Emscripten Clang (https://github.com/emscripten-core/emsdk) in /usr/share/
     - MinGW32 G++/Clang (https://github.com/mstorsjo/llvm-mingw) for x86_64, i686, armhf and aarch64, (unzip the content of the folder in the tar.xz file) in /usr/, along with soft links from /usr/bin/ to the binaries
+    Optional Tools:
+    - Ninja
+    - UPX (the devel branch is required because of a bug which is not fixed in the 3.96 version)
 */
 
 pipeline {