diff --git a/poetry.lock b/poetry.lock
index e720cc5..54ae24b 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -571,13 +571,13 @@ pytz = ">=2022.7"
 
 [[package]]
 name = "flask-cors"
-version = "5.0.0"
+version = "4.0.2"
 description = "A Flask extension adding a decorator for CORS support"
 optional = false
 python-versions = "*"
 files = [
-    {file = "Flask_Cors-5.0.0-py2.py3-none-any.whl", hash = "sha256:b9e307d082a9261c100d8fb0ba909eec6a228ed1b60a8315fd85f783d61910bc"},
-    {file = "flask_cors-5.0.0.tar.gz", hash = "sha256:5aadb4b950c4e93745034594d9f3ea6591f734bb3662e16e255ffbf5e89c88ef"},
+    {file = "Flask_Cors-4.0.2-py2.py3-none-any.whl", hash = "sha256:38364faf1a7a5d0a55bd1d2e2f83ee9e359039182f5e6a029557e1f56d92c09a"},
+    {file = "flask_cors-4.0.2.tar.gz", hash = "sha256:493b98e2d1e2f1a4720a7af25693ef2fe32fbafec09a2f72c59f3e475eda61d2"},
 ]
 
 [package.dependencies]
@@ -2631,4 +2631,4 @@ test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools",
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.8,<4.0"
-content-hash = "3176b40362e864799dc67337939c4fea718c6b134d6c6b82ad415ea17ebdc8af"
+content-hash = "2ad84cc55f10767bb31094b426e1caf66c79ca7ed6b77f9cee54f130ab5ab0d6"
diff --git a/pyproject.toml b/pyproject.toml
index 95d0abb..408eb8b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ alembic = "^1.7.4"
 requests = "^2.32.3"
 jsonschema = "^4.1.1"
 psycopg2-binary = "^2.9.9"
-flask-cors = "^5.0.0"
+flask-cors = "^4.0.2"
 networkx = "^2.4"
 email_validator = "^1.1.1"
 flask_restx = "^1.3.0"