diff --git a/requirements.txt b/requirements.txt
index 279f7dd..4df35be 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ coverage==6.5.0
 git+https://github.com/DiamondLightSource/diffcalc-core@addExtraFunctions#egg=diffcalc-core
 distlib==0.3.6
 docutils==0.19
-fastapi==0.88.0
+fastapi==0.89.0
 filelock==3.8.0
 flake8==6.0.0
 flake8-isort==5.0.3