diff --git a/pyproject.toml b/pyproject.toml
index 547ea3af5..e78835476 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -27,7 +27,7 @@ dependencies = [
     "uvicorn>=0.52.1",
     "requests",
     "GitPython>=3.1.58",                             #security base min https://github.com/advisories/GHSA-4gmw-gg2m-w46p
-    "event-model==1.23.1",                           # https://github.com/DiamondLightSource/blueapi/issues/684
+    "event-model==1.24.0",                           # https://github.com/DiamondLightSource/blueapi/issues/684
     "bluesky-stomp>=0.1.6",
     "opentelemetry-distro>=0.48b0",
     "opentelemetry-instrumentation-fastapi>=0.48b0",