diff --git a/install/scripts/install_ocaml.sh b/install/scripts/install_ocaml.sh
index 234cd09f..a7462b2e 100755
--- a/install/scripts/install_ocaml.sh
+++ b/install/scripts/install_ocaml.sh
@@ -5,7 +5,8 @@ QP_ROOT=$PWD
 cd -
 
 # Normal installation
-PACKAGES="core cryptokit ocamlfind sexplib pa_sexp_conv ZMQ"
+PACKAGES="core cryptokit ocamlfind sexplib ZMQ"
+#ppx_sexp_conv
 
 # Needed for ZeroMQ
 export C_INCLUDE_PATH="${QP_ROOT}"/lib:"${C_INCLUDE_PATH}"
diff --git a/ocaml/_tags b/ocaml/_tags
index 6570ddca..3f5cd9b6 100644
--- a/ocaml/_tags
+++ b/ocaml/_tags
@@ -1,3 +1,3 @@
-true: package(core,sexplib,pa_sexp_conv,cryptokit,ZMQ)
+true: package(core,cryptokit,ZMQ,sexplib.syntax)
 true: thread
 false: profile