diff --git a/poetry.lock b/poetry.lock
index 18857d4..a573585 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -520,7 +520,7 @@ strict-rfc3339 = ["strict-rfc3339"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7.0"
-content-hash = "ee8b18c9b61d21105c15e5d1d9bb2ede85e0b7796775ab7a422aad0c9083d468"
+content-hash = "d50a986b1e301ab7ac8b7f3116680023c4082a5c576be743c0074d593b5269be"
 
 [metadata.files]
 atomicwrites = [
diff --git a/pyproject.toml b/pyproject.toml
index b250e6f..438890f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,7 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.7.0"
-jsonschema = "*"
+jsonschema = ">=3.0.0, <5.0.0"
 rfc3339-validator = {version = "*", optional = true}
 strict-rfc3339 = {version = "*", optional = true}
 isodate = {version = "*", optional = true}