diff --git a/requirements_dev.txt b/requirements_dev.txt
index 19506027..4b985a96 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 # Requirements of this dev
-FireWorks==1.8.7
+FireWorks==1.9.7
 GitPython==2.1.11
 black==19.3b0
 flake8==3.7.8