diff --git a/setup.py b/setup.py
index 8a2dcee8d0f4fb80986efa99d91176e653993c45..4b2b05b8689cd14b26abaa299646b85d685ab95c 100755
--- a/setup.py
+++ b/setup.py
@@ -155,6 +155,7 @@ def setup_package():
         author='Henrik tom Wörden',
         author_email='h.tomwoerden@indiscale.com',
         install_requires=["caosdb>=0.6.0",
+                          "jsonschema>=4.4.0",
                           "openpyxl>=3.0.0",
                           "pandas>=1.2.0",
                           "numpy>=1.17.3",