diff --git a/ci/requirements-2.7.sh b/ci/requirements-2.7.sh
index e3bd5e46026c5..95169e5dcce57 100644
--- a/ci/requirements-2.7.sh
+++ b/ci/requirements-2.7.sh
@@ -4,4 +4,4 @@ source activate pandas
 
 echo "install 27"
 
-conda install -n pandas -c conda-forge feather-format pyarrow=0.4.1 fastparquet
+conda install -n pandas -c conda-forge feather-format pyarrow=0.4.1 jemalloc=4.5.0.post fastparquet