diff --git a/pyproject.toml b/pyproject.toml
index 66660fd48..a1de78705 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -115,7 +115,7 @@ DEV = [
 ]
 
 EXE = [
-    "prefect >=2.0.0, <2.6.6",  # for extra workflow orchestration 
+    "prefect >=2.0.0, <2.14.19",  # for extra workflow orchestration 
     "dask-jobqueue >=0.7.3, <=0.8.2",  # for submitting on HPC clusters
     "anyio >=3.6.1",  # for async utilities when using Prefect
     "nest_asyncio >=1.5.5, <1.5.9",  # to allow async calls in Spyder/iPython/Jupyter