diff --git a/_service b/_service
index 6ecdabe..4125f8f 100644
--- a/_service
+++ b/_service
@@ -1,9 +1,9 @@
 <services>
   <service name="tar_scm" mode="disabled">
-    <param name="url">git://github.com/mjambon/cppo.git</param>
+    <param name="url">git://github.com/ocaml-community/cppo.git</param>
     <param name="scm">git</param>
-    <param name="versionformat">1.6.1</param>
-    <param name="revision">v1.6.1</param>
+    <param name="versionformat">1.6.5</param>
+    <param name="revision">v1.6.5</param>
     <param name="filename">ocaml-cppo</param>
   </service>
   <service name="recompress" mode="disabled">
diff --git a/ocaml-cppo-1.6.1.tar.xz b/ocaml-cppo-1.6.1.tar.xz
deleted file mode 100644
index e255c60..0000000
--- a/ocaml-cppo-1.6.1.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7bebe817de6c19d00a25758f25dfd37607a2b477887ed5599a0c2f5cd5eb6355
-size 24668
diff --git a/ocaml-cppo-1.6.5.tar.xz b/ocaml-cppo-1.6.5.tar.xz
new file mode 100644
index 0000000..594804f
--- /dev/null
+++ b/ocaml-cppo-1.6.5.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:880b31a6439423010297ab7e5f020c286633466d20602583ce38064496f03cce
+size 24400
diff --git a/ocaml-cppo.changes b/ocaml-cppo.changes
index b30c9e2..6fa218f 100644
--- a/ocaml-cppo.changes
+++ b/ocaml-cppo.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Tue Feb  5 18:39:39 UTC 2019 - andy@onthewings.net
+
+- Update to 1.6.5:
+  * Fix tests.
+  * Fix 'asr' operator.
+- Update build command for latest version of dune.
+- Update upstream url (migrated to ocaml-community GitHub account).
+
 -------------------------------------------------------------------
 Mon Jun 11 09:28:49 UTC 2018 - andy@onthewings.net
 
diff --git a/ocaml-cppo.spec b/ocaml-cppo.spec
index e7c40c8..372062f 100644
--- a/ocaml-cppo.spec
+++ b/ocaml-cppo.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ocaml-cppo
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 # Copyright (c) 2018 The openSUSE Project.
 # Copyright (c) 2015 LISA GmbH, Bingen, Germany.
 #
@@ -23,13 +23,13 @@
 # Build with "--with-opam" to use opam despite the circular dependency.
 %bcond_with opam
 Name:           ocaml-cppo
-Version:        1.6.1
+Version:        1.6.5
 Release:        0
 %{?ocaml_preserve_bytecode}
 Summary:        The C preprocessor written in OCaml
 License:        BSD-3-Clause
 Group:          Development/Languages/OCaml
-Url:            https://github.com/mjambon/cppo
+Url:            https://github.com/ocaml-community/cppo
 Source:         %{name}-%{version}.tar.xz
 # PATCH-FIX-UPSTEAM ocaml-cppo-1.6.1-install-args.patch -- Allows to pass buildroot to opam-installer
 Patch:          ocaml-cppo-1.6.1-install-args.patch
@@ -72,7 +72,7 @@ developing applications that use %{name}.
 %patch -p1
 
 %build
-make %{?_smp_mflags}
+dune build @install --profile release
 
 %install
 %if %{with opam}