diff --git a/src/ci/docker/scripts/emscripten.sh b/src/ci/docker/scripts/emscripten.sh
index 9f6a7f2e5db449e27827646d6f2b672c319957da..9481ee95399db5213df5ed6abc2c7902c3e8c446 100644
--- a/src/ci/docker/scripts/emscripten.sh
+++ b/src/ci/docker/scripts/emscripten.sh
@@ -19,5 +19,5 @@ exit 1
 
 git clone https://github.com/emscripten-core/emsdk.git /emsdk-portable
 cd /emsdk-portable
-hide_output ./emsdk install 1.38.47-upstream
-./emsdk activate 1.38.47-upstream
+hide_output ./emsdk install 1.39.20
+./emsdk activate 1.39.20