diff --git a/Jenkinsfile b/Jenkinsfile
index c1e6b99..ffcf74b 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -8,7 +8,7 @@ boolean use_yarn_or_npm() { return fileExists('/usr/bin/yarn') || fileExists('/u
     - Workspace Cleanup
    Required Compilers:
     - Musl cross-compiling toolchains (archives ending in "-cross" from https://musl.cc/#binaries) for x86_64, i686, armel, armhf, aarch64 and riscv64, unzipped into /usr/, along with soft links from /usr/bin/ to the binaries
-    - Emscripten Clang (https://github.com/emscripten-core/emsdk) in /usr/share/
+    - Emscripten Clang (https://github.com/emscripten-core/emsdk; the 3.1.30 version is known to work) 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