diff --git a/.gitignore b/.gitignore
index 2081238..d9fb0e2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 clog
 /rpy2-2.8.1.tar.gz
 /rpy2-2.8.3.tar.gz
+/rpy2-2.8.5.tar.gz
diff --git a/rpy.spec b/rpy.spec
index c501585..6552f2c 100644
--- a/rpy.spec
+++ b/rpy.spec
@@ -3,8 +3,8 @@
 %global rver   3.3.2
 
 Name:          rpy
-Version:       2.8.3
-Release:       2%{?dist}
+Version:       2.8.5
+Release:       1%{?dist}
 Summary:       %{sum}
 
 License:       GPLv2+
@@ -55,6 +55,10 @@ converted to Python exceptions.
 %setup -q -n %{srcname}2-%{version}
 
 %build
+# Temporary workaround to fix a bug in R
+# see https://stat.ethz.ch/pipermail/r-devel/2016-December/073548.html
+export CFLAGS+=" -DHAVE_UINTPTR_T=1"
+
 %py2_build
 %py3_build
 
@@ -74,6 +78,10 @@ converted to Python exceptions.
 
 
 %changelog
+* Fri Dec 30 2016 José Matos <jamatos@fedoraproject.org> - 2.8.5-1
+- update to 2.8.5
+- workaround to fix a bug in R
+
 * Mon Dec 19 2016 Miro Hrončok <mhroncok@redhat.com> - 2.8.3-2
 - Rebuild for Python 3.6
 
diff --git a/sources b/sources
index 5c86c2b..7f664cd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-9e5c76f311ce19b549683f0279b9663b  rpy2-2.8.3.tar.gz
+SHA512 (rpy2-2.8.5.tar.gz) = 737649bea67f0cb2a73dfedfe6f342b52bd8e73840b0da6eb64c8a61d25665d74394df6070ed67ec7a59632798e12fce05225e5c1ec5de587f1ae40ce5074b99