diff --git a/pyproject.toml b/pyproject.toml
index 4ed7d86..7383ddd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,12 +39,13 @@ classifiers = [
 ]
 requires-python = ">=3.9"
 dependencies = [
-    "dataclasses-json",
-    "httpx[http2]",
-    "marshmallow",
-    "pydantic",
-    "python-dateutil",
-    "tenacity",
+    "dataclasses-json == 0.6.7",
+    "httpx[http2] == 0.27.2",
+    "marshmallow == 3.23.1",
+    "pydantic == 2.9.2",
+    "python-dateutil == 2.9.0.post0",
+    "tenacity == 9.0.0",
+
     "black",
     "codecov",
     "pytest",