diff --git a/.gitignore b/.gitignore
index f5fd91d..24ce00a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ clog
 /mongo-c-driver-1.8.0.tar.gz
 /mongo-c-driver-1.8.1.tar.gz
 /mongo-c-driver-1.8.2.tar.gz
+/mongo-c-driver-1.9.0.tar.gz
diff --git a/mongo-c-driver-rpm.patch b/mongo-c-driver-rpm.patch
index 636a7ff..1268ee1 100644
--- a/mongo-c-driver-rpm.patch
+++ b/mongo-c-driver-rpm.patch
@@ -6,7 +6,7 @@ diff -up ./build/autotools/Libbson.m4.rpm ./build/autotools/Libbson.m4
  # greater than our required version.
  AS_IF([test "x${with_libbson}" = xauto],
 -      [PKG_CHECK_MODULES(BSON, [libbson-1.0 >= libbson_required_version],
-+      [PKG_CHECK_MODULES(BSON, [libbson-1.0 >= 1.6],
++      [PKG_CHECK_MODULES(BSON, [libbson-1.0 >= 1.9],
                           [with_libbson=system],
                           [with_libbson=bundled])])
  
@@ -14,14 +14,14 @@ diff -up ./build/autotools/Libbson.m4.rpm ./build/autotools/Libbson.m4
  AS_IF([test "x${with_libbson}" = xsystem],
        [PKG_CHECK_MODULES(BSON,
 -                         [libbson-1.0 >= libbson_required_version],
-+                         [libbson-1.0 >= 1.6],
++                         [libbson-1.0 >= 1.9],
                           [],
                           [AC_MSG_ERROR([
  
 diff -up ./Makefile.am.rpm ./Makefile.am
 --- ./Makefile.am.rpm	2017-03-07 14:33:43.000000000 +0100
 +++ ./Makefile.am	2017-03-08 07:00:37.848097367 +0100
-@@ -39,10 +39,10 @@ DISTCHECK_CONFIGURE_FLAGS = --enable-sil
+@@ -42,10 +42,10 @@ DISTCHECK_CONFIGURE_FLAGS = --enable-sil
  
  mongocdocdir = ${docdir}
  mongocdoc_DATA = \
diff --git a/mongo-c-driver.spec b/mongo-c-driver.spec
index 8f4ad13..cb271ed 100644
--- a/mongo-c-driver.spec
+++ b/mongo-c-driver.spec
@@ -11,7 +11,7 @@
 %global libname      libmongoc
 %global libver       1.0
 #global prever       rc2
-%global bsonver      1.8
+%global bsonver      1.9
 
 %ifarch x86_64
 # Temporarily disabled
@@ -25,7 +25,7 @@
 
 Name:      mongo-c-driver
 Summary:   Client library written in C for MongoDB
-Version:   1.8.2
+Version:   1.9.0
 Release:   1%{?dist}
 License:   ASL 2.0
 Group:     System Environment/Libraries
@@ -200,6 +200,10 @@ exit $ret
 
 
 %changelog
+* Fri Dec 22 2017 Remi Collet <remi@remirepo.net> - 1.9.0-1
+- update to 1.9.0
+- raise dependency on libbson 1.9
+
 * Fri Nov 17 2017 Remi Collet <remi@fedoraproject.org> - 1.8.2-1
 - update to 1.8.2
 
diff --git a/sources b/sources
index 79442c2..cee5b41 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mongo-c-driver-1.8.2.tar.gz) = af23601ba33694d80acdb890c1b85a354fda966491c4bbfb341a884bcd6314886e405efa3a09e47398adf8dbfdeb1b05ae8b022a72f04a66265bfaeddb661f76
+SHA512 (mongo-c-driver-1.9.0.tar.gz) = 9bbada2c03f3f283f66bd67e11b2cd556a721bc98ddbb9aed2d200780992990326dbf97aa9b1636175cf6ac0a6da13874787fc881f3750b07b0e5e622dc8a606