diff --git a/pyproject.toml b/pyproject.toml
index 06f6074..2a624d9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "web-sand"
-version = "3.1.2"
+version = "4.0.0"
 description = "UI for browsing/editing semantic descriptions"
 authors = ["Binh Vu <binh@toan2.com>"]
 repository = "https://github.com/usc-isi-i2/sand"
@@ -14,9 +14,9 @@ sand = 'sand.__main__:cli'
 
 [tool.poetry.dependencies]
 # restricting the upper bound python version to 3.12, due to RestrictedPython dependency.
-python = ">=3.8,<3.12"
-kgdata = "^5.3.5"
-sem-desc = "^5.1.0"
+python = ">=3.9, <3.12"
+kgdata = "^6.0.0"
+sem-desc = "^6.0.0"
 peewee = "^3.15.2"
 Flask = "^2.2.2"
 python-dotenv = ">= 0.19.0, < 0.20.0"