diff --git a/build.sh b/build.sh
index df111cd..10115c2 100755
--- a/build.sh
+++ b/build.sh
@@ -2,7 +2,7 @@
 
 set -eu
 
-MIMALLOC_VERSION=2.1.2
+MIMALLOC_VERSION=2.1.4
 
 cd /tmp