diff --git a/requirements.txt b/requirements.txt
index a51d3f9..8b4c7d6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ click==8.1.3
 coverage==6.4.4
 git+https://github.com/DiamondLightSource/diffcalc-core.git#egg=diffcalc-core
 distlib==0.3.6
-docutils==0.17.1
+docutils==0.19
 fastapi==0.79.0
 filelock==3.8.0
 flake8==5.0.4