diff --git a/web-wasm/Dockerfile.in b/web-wasm/Dockerfile.in
index d0146fc..a5d2e5c 100644
--- a/web-wasm/Dockerfile.in
+++ b/web-wasm/Dockerfile.in
@@ -1,4 +1,4 @@
-ARG DOCKER_IMAGE_VERSION=3.1.74
+ARG DOCKER_IMAGE_VERSION=4.0.3
 ARG HOST_ARCH_TAG
 FROM emscripten/emsdk:$DOCKER_IMAGE_VERSION$HOST_ARCH_TAG