diff --git a/ci/requirements_all.txt b/ci/requirements_all.txt
index e13afd619f105..670a741e3b2b3 100644
--- a/ci/requirements_all.txt
+++ b/ci/requirements_all.txt
@@ -16,7 +16,7 @@ patsy
 beautifulsoup4
 numpy
 cython
-scipy
+scipy==1.1.0
 numexpr
 pytables
 matplotlib