diff --git a/requirements/runtime.txt b/requirements/runtime.txt
index 9d426471469e727d9c201dd597019a13d1a1c13d..5f2374a94a3acd6ae1740caa4edc5bee0ca79835 100644
--- a/requirements/runtime.txt
+++ b/requirements/runtime.txt
@@ -1,5 +1,5 @@
 matplotlib
-mmcv>=0.5.7
+mmcv>=0.5.9
 numpy
 # need older pillow until torchvision is fixed
 Pillow<=6.2.2