diff --git a/Dockerfile b/Dockerfile
index 2ba88d81e..3aec0eeaf 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,6 +28,7 @@ RUN \
   curl -Ls https://github.com/emscripten-core/emscripten/compare/3.1.72...kleisauke:wasm-vips-3.1.72.patch | patch -p1 -d $EMSDK/upstream/emscripten && \
   curl -Ls https://github.com/emscripten-core/emscripten/commit/d0a2dce14cc3debad719e111ed7830ee5eb728b0.patch | patch -p1 -d $EMSDK/upstream/emscripten && \
   curl -Ls https://github.com/emscripten-core/emscripten/commit/27d7daac1c2d3741a2aee3e88b1f660b21b49af6.patch | filterdiff -p1 -x ChangeLog.md | patch -p1 -d $EMSDK/upstream/emscripten && \
+  curl -Ls https://github.com/emscripten-core/emscripten/compare/55934a5...kleisauke:mimalloc-update-9b75377.patch | filterdiff -p1 -x ChangeLog.md | patch -p1 -d $EMSDK/upstream/emscripten && \
   emcc --clear-cache && embuilder build sysroot --force
 
 # Rust