diff --git a/.gitmodules b/.gitmodules
index c1a25fb..c1b5096 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -3,5 +3,5 @@
 	url = https://github.com/microsoft/mimalloc.git
 [submodule "libmimalloc-sys/c_src/mimalloc3"]
 	path = libmimalloc-sys/c_src/mimalloc3
-	url = https://github.com/microsoft/mimalloc.git
-	branch = dev3
+	url = https://github.com/napi-rs/mimalloc.git
+	branch = fix/first-thread-done
diff --git a/libmimalloc-sys/c_src/mimalloc3 b/libmimalloc-sys/c_src/mimalloc3
index 18b0867..1e5d14c 160000
--- a/libmimalloc-sys/c_src/mimalloc3
+++ b/libmimalloc-sys/c_src/mimalloc3
@@ -1 +1 @@
-Subproject commit 18b08671c9302247bfb682286e6bf3cc1773f801
+Subproject commit 1e5d14ca11b27fb352820405d2ed422c7b56b468