diff --git a/install/scripts/install_ocaml.sh b/install/scripts/install_ocaml.sh
index f6978df2..80632dd2 100755
--- a/install/scripts/install_ocaml.sh
+++ b/install/scripts/install_ocaml.sh
@@ -64,7 +64,7 @@ fi
 cd Downloads || exit 1
 chmod +x  ocaml.sh || exit 1
 
-echo N | ./ocaml.sh ${QP_ROOT}/bin/ 4.02.3 || exit 1
+echo N | ./ocaml.sh ${QP_ROOT}/bin/ 4.02.1 || exit 1
 
 ${QP_ROOT}/bin/opam config setup -a -q || exit 1