diff --git a/configure.ac b/configure.ac
index 477b8aee..717def8b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -145,17 +145,17 @@ AC_MSG_RESULT([$enable_isystem])
 
 # Check dependencies.
 #==============================================================================
-# Require Boost of at least version 1.57.0 and output ${boost_CPPFLAGS/LDFLAGS}.
+# Require Boost of at least version 1.62.0 and output ${boost_CPPFLAGS/LDFLAGS}.
 #------------------------------------------------------------------------------
 AS_CASE([${CC}], [*],
-    [AX_BOOST_BASE([1.57.0],
+    [AX_BOOST_BASE([1.62.0],
         [AC_SUBST([boost_CPPFLAGS], [${BOOST_CPPFLAGS}])
          AC_SUBST([boost_ISYS_CPPFLAGS], [`echo ${BOOST_CPPFLAGS} | $SED s/^-I/-isystem/g | $SED s/' -I'/' -isystem'/g`])
          AC_SUBST([boost_LDFLAGS], [${BOOST_LDFLAGS}])
          AC_MSG_NOTICE([boost_CPPFLAGS : ${boost_CPPFLAGS}])
          AC_MSG_NOTICE([boost_ISYS_CPPFLAGS : ${boost_ISYS_CPPFLAGS}])
          AC_MSG_NOTICE([boost_LDFLAGS : ${boost_LDFLAGS}])],
-        [AC_MSG_ERROR([Boost 1.57.0 or later is required but was not found.])])])
+        [AC_MSG_ERROR([Boost 1.62.0 or later is required but was not found.])])])
 
 AS_CASE([${enable_isystem}],[yes],
     [AC_SUBST([boost_BUILD_CPPFLAGS], [${boost_ISYS_CPPFLAGS}])],
diff --git a/install.sh b/install.sh
index 38f0a3c3..95cb5841 100755
--- a/install.sh
+++ b/install.sh
@@ -34,13 +34,13 @@ BUILD_DIR="build-libbitcoin-server"
 
 # ZMQ archive.
 #------------------------------------------------------------------------------
-ZMQ_URL="https://github.com/zeromq/libzmq/releases/download/v4.2.0/zeromq-4.2.0.tar.gz"
-ZMQ_ARCHIVE="zeromq-4.2.0.tar.gz"
+ZMQ_URL="https://github.com/zeromq/libzmq/releases/download/v4.2.5/zeromq-4.2.5.tar.gz"
+ZMQ_ARCHIVE="zeromq-4.2.5.tar.gz"
 
 # Boost archive.
 #------------------------------------------------------------------------------
-BOOST_URL="http://downloads.sourceforge.net/project/boost/boost/1.57.0/boost_1_57_0.tar.bz2"
-BOOST_ARCHIVE="boost_1_57_0.tar.bz2"
+BOOST_URL="http://downloads.sourceforge.net/project/boost/boost/1.62.0/boost_1_62_0.tar.bz2"
+BOOST_ARCHIVE="boost_1_62_0.tar.bz2"
 
 
 # Define utility functions.