diff --git a/web-wasm/Dockerfile.in b/web-wasm/Dockerfile.in
index 12f2cdf..8f98b27 100644
--- a/web-wasm/Dockerfile.in
+++ b/web-wasm/Dockerfile.in
@@ -1,4 +1,4 @@
-ARG DOCKER_IMAGE_VERSION=3.1.10
+ARG DOCKER_IMAGE_VERSION=3.1.13
 FROM emscripten/emsdk:$DOCKER_IMAGE_VERSION
 
 LABEL maintainer="Matt McCormick matt.mccormick@kitware.com"