diff --git a/pyproject.toml b/pyproject.toml
index 6d52e43..2b41841 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -76,6 +76,7 @@ docker-prod = "docker build -f docker/Dockerfile -t dbt-postgres ."
 
 [tool.hatch.envs.unit-tests]
 dependencies = [
+    "psycopg2-binary>=2.9,<3.0",
     "dbt-adapters @ git+https://github.com/dbt-labs/dbt-adapters.git@ADAP-207/get_show_sql_has_no_wrapping",
     "dbt-common @ git+https://github.com/dbt-labs/dbt-common.git",
     "dbt-core @ git+https://github.com/dbt-labs/dbt-core.git#subdirectory=core",