diff --git a/pyproject.toml b/pyproject.toml
index 2be688a..78c9d05 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,6 +10,7 @@ classifiers = [
     'Topic :: Database',
     'Programming Language :: Python',
     'Intended Audience :: Developers',
+    'Programming Language :: Python :: 2.7',
     'Programming Language :: Python :: 3.6',
     'Programming Language :: Python :: 3.7',
     'Programming Language :: Python :: 3.8',
@@ -21,11 +22,15 @@ classifiers = [
 keywords = ["Redis Search Extension"]
 
 [tool.poetry.dependencies]
-python = "^3.6"
-hiredis = "^2.0.0"
+python = ">=2.7,<=2.9.0 || >= 3.5.0"
 redis = "^3.5.3"
 six = "^1.16.0"
 rmtest = {git = "https://github.com/RedisLabs/rmtest"}
+hiredis = [
+    {version = "1.1.0", python = "~2.7"},
+    {version = "^2.0.0", python = "^3.6"},
+]
+
 
 
 [tool.poetry.urls]
@@ -35,10 +40,10 @@ repository = "https://github.com/RedisSearch/redisearch-py"
 [tool.poetry.dev-dependencies]
 codecov = "^2.1.11"
 flake8 = "^3.9.2"
-tox = "^3.23.1"
-tox-poetry = "^0.3.0"
-bandit = "^1.7.0"
-vulture = "^2.3"
+tox = "3.15.1"
+tox-poetry = "0.3.0"
+bandit = "1.6.0"
+vulture = "1.6"
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]
diff --git a/tox.ini b/tox.ini
index ae1f4fe..08d79ec 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 skipsdist = True
-envlist = linters,cover,test_with_coverage
+envlist = linters,cover,test_with_coverage,py27,py36,py37,py38,py39
 
 [flake8]
 max-complexity = 10