diff --git a/.gitignore b/.gitignore
index c8fe938..7ce20e9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,3 @@ lwt-2.0.0+rc1.tar.gz
 /lwt-2.3.2.tar.gz
 /lwt-2.4.2.tar.gz
 /lwt-2.4.3.tar.gz
-/lwt-75b1dc1aefae75dc4ac6455f5a2688b3a52adabd.tar.gz
diff --git a/ocaml-lwt.spec b/ocaml-lwt.spec
index a9be790..92ede94 100644
--- a/ocaml-lwt.spec
+++ b/ocaml-lwt.spec
@@ -1,16 +1,19 @@
-%global commit 75b1dc1aefae75dc4ac6455f5a2688b3a52adabd
 %global opt %(test -x %{_bindir}/ocamlopt && echo 1 || echo 0)
 
 Name:           ocaml-lwt
-Version:        2.4.5
-Release:        1%{?dist}
+Version:        2.4.3
+Release:        12%{?dist}
 Summary:        OCaml lightweight thread library
 
 # The openssl linking exception is granted.
 License:        LGPLv2+ with exceptions
 URL:            http://ocsigen.org/lwt
-Source0:        https://github.com/ocsigen/lwt/archive/%{commit}/lwt-%{commit}.tar.gz
+Source0:        http://ocsigen.org/download/lwt-%{version}.tar.gz
 
+# Adapt to changes in OCaml 4.01.0
+Patch1:         lwt-2.4.3-ocaml41.patch
+# https://github.com/ocaml/camlp4/issues/19
+Patch2:         lwt-fix-ocaml-camlp4-19.patch
 
 BuildRequires:  ocaml >= 3.10.0
 BuildRequires:  ocaml-findlib-devel
@@ -39,7 +42,10 @@ developing applications that use %{name}.
 
 
 %prep
-%setup -q -n lwt-%{commit}
+%setup -q -n lwt-%{version}
+
+%patch1
+%patch2 -p1
 
 mv README README.old
 iconv -f iso-8859-1 -t utf-8 < README.old > README
@@ -93,10 +99,6 @@ OCAMLPATH=$RPM_BUILD_ROOT%{_libdir}/ocaml ocamlfind query lwt.react
 
 
 %changelog
-* Mon Aug 18 2014 Scott Tsai <scottt.tw@gmail.com> 2.4.5-1
-- New upstream version 2.4.5 (tarball created from tag through github https://github.com/ocsigen/lwt/tags)
-- Remove patches which are now upstream.
-
 * Mon Aug 18 2014 Scott Tsai <scottt.tw@gmail.com> - 2.4.3-12
 - Add lwt-fix-ocaml-camlp4-19.patch to fix OCaml 4.02+ build failure
 - Rebuild for ocaml-4.02.0-0.8.git10e45753.fc22.
diff --git a/sources b/sources
index ed910d5..86ae44e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-cc47518652ef6c498c0baf3112676726  lwt-75b1dc1aefae75dc4ac6455f5a2688b3a52adabd.tar.gz
+4a4a22da7da4301c6282f361edd0c241  lwt-2.4.3.tar.gz