diff --git a/install/build.ninja b/install/build.ninja
index 351db7d..758982d 100644
--- a/install/build.ninja
+++ b/install/build.ninja
@@ -7,8 +7,8 @@ URL_OPAM  ="https://raw.github.com/ocaml/opam/master/shell/opam_installer.sh"
 URL_IRPF90="https://github.com/scemama/irpf90/archive/v1.6.7.tar.gz"
 URL_EZFIO ="https://github.com/scemama/EZFIO/archive/v1.3.1.tar.gz"
 
-URL_ZMQ   ="http://download.zeromq.org/zeromq-4.0.7.tar.gz"
-#URL_ZMQ   ="http://download.zeromq.org/zeromq-4.1.3.tar.gz"
+#URL_ZMQ   ="http://download.zeromq.org/zeromq-4.0.7.tar.gz"
+URL_ZMQ   ="http://download.zeromq.org/zeromq-4.1.4.tar.gz"
 URL_F77ZMQ="https://github.com/scemama/f77_zmq/archive/v4.1.3.tar.gz"
 
 # Rules
diff --git a/install/scripts/install_ocaml_zmq.sh b/install/scripts/install_ocaml_zmq.sh
index 1591fb0..a6f73d7 100755
--- a/install/scripts/install_ocaml_zmq.sh
+++ b/install/scripts/install_ocaml_zmq.sh
@@ -32,7 +32,7 @@ export C_INCLUDE_PATH="${QMCCHEM_PATH}/lib":$C_INCLUDE_PATH
 export LIBRARY_PATH="${QMCCHEM_PATH}/lib":$LIBRARY_PATH
 export LD_LIBRARY_PATH="${QMCCHEM_PATH}/lib":$LD_LIBRARY_PATH
 set -u
-opam install zmq 
+opam install zmq conf-zmq
 rm -f _build/ocaml_zmq.log
 exit 0
 
diff --git a/install/scripts/install_zmq.sh b/install/scripts/install_zmq.sh
index 80da3a3..c3b99ea 100755
--- a/install/scripts/install_zmq.sh
+++ b/install/scripts/install_zmq.sh
@@ -3,7 +3,8 @@
 TARGET=zmq
 function _install()
 {
-  LIBVERSION=4
+#  LIBVERSION=4
+  LIBVERSION=5
   cd .. ; QMCCHEM_PATH="$PWD" ; cd -
   set +u
   export C_INCLUDE_PATH="${C_INCLUDE_PATH}":./
@@ -14,10 +15,10 @@ function _install()
   make -j 8
   cd - 
   rm -f -- "${QMCCHEM_PATH}"/lib/libzmq.{a,so,so.$LIBVERSION} 
-# cp "${BUILD}"/.libs/libzmq.a "${QMCCHEM_PATH}"/lib/ 
-# cp "${BUILD}"/.libs/libzmq.so "${QMCCHEM_PATH}"/lib/libzmq.so.$LIBVERSION	
-  cp "${BUILD}"/src/.libs/libzmq.a "${QMCCHEM_PATH}"/lib/ 
-  cp "${BUILD}"/src/.libs/libzmq.so "${QMCCHEM_PATH}"/lib/libzmq.so.$LIBVERSION
+ cp "${BUILD}"/.libs/libzmq.a "${QMCCHEM_PATH}"/lib/ 
+ cp "${BUILD}"/.libs/libzmq.so "${QMCCHEM_PATH}"/lib/libzmq.so.$LIBVERSION	
+#  cp "${BUILD}"/src/.libs/libzmq.a "${QMCCHEM_PATH}"/lib/ 
+#  cp "${BUILD}"/src/.libs/libzmq.so "${QMCCHEM_PATH}"/lib/libzmq.so.$LIBVERSION
   cp "${BUILD}"/include/{zmq,zmq_utils}.h "${QMCCHEM_PATH}"/lib/
   cd "${QMCCHEM_PATH}"/lib
   ln libzmq.so.$LIBVERSION libzmq.so || cp libzmq.so.$LIBVERSION libzmq.so
diff --git a/src/JASTROW/jastrow_core.irp.f b/src/JASTROW/jastrow_core.irp.f
index f498a98..da8af7f 100644
--- a/src/JASTROW/jastrow_core.irp.f
+++ b/src/JASTROW/jastrow_core.irp.f
@@ -14,7 +14,7 @@
      jast_elec_Core_range(i) = 0.d0
    else
      double precision :: rc
-     double precision, parameter :: thresh = 0.5  ! function = thresh at rc
+     double precision, parameter :: thresh = 0.5d0  ! function = thresh at rc
      rc = min(0.8d0,max(4.0d0/nucl_charge(i), 0.25d0))
      jast_elec_Core_expo(i) = -1.d0/rc**2 * log(thresh)
      jast_elec_Core_range(i) = dsqrt(15.d0/jast_elec_Core_expo(i))