diff --git a/pyproject.toml b/pyproject.toml
index d7e31e8..789974c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -138,6 +138,7 @@ ignore_missing_imports = true
 python_version = "3.10"
 conda_install = ["openjdk=8"]
 extras = ["dev"]
+deps = ["pyspark[connect]==3.5.1"]
 command = "pytest tests/ --ignore=tests/test_snowflake.py"
 upgrade = [
     "pandas",