diff --git a/src/pypgstac/pyproject.toml b/src/pypgstac/pyproject.toml
index 6fb97a13..046f3fe2 100644
--- a/src/pypgstac/pyproject.toml
+++ b/src/pypgstac/pyproject.toml
@@ -20,7 +20,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
 ]
 dependencies = [
-    "cachetools==5.3.*",
+    "cachetools>=5.3,<6",
     "fire==0.4.*",
     "hydraters==0.1.*",
     "orjson>=3.6.2",
@@ -28,7 +28,7 @@ dependencies = [
     "pydantic>=1.7",
     "python-dateutil==2.8.*",
     "smart-open>=4.2",
-    "tenacity==8.1.*",
+    "tenacity>=8,<9",
     "version-parser>= 1.0.1",
 ]