diff --git a/tox.ini b/tox.ini
index e456d55d0..4e9f66c28 100644
--- a/tox.ini
+++ b/tox.ini
@@ -57,6 +57,9 @@ deps =
 
 [testenv:integration-spark-thrift]
 description = run integration tests against a Spark thrift server
+allowlist_externals =
+    /bin/bash
+basepython = python3.9
 passenv =
     DBT_*
     PYTEST_ADDOPTS
@@ -64,7 +67,7 @@ deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/dev-requirements.txt
     -e.
-commands = pytest -v --profile apache_spark {posargs} -n4 tests/functional/adapter/*
+commands = /bin/bash -c '{envpython} -m pytest -v --profile apache_spark {posargs} -n4 tests/functional/adapter/*'
 
 [testenv:integration-spark-session]
 description = run integration tests against a Spark session
@@ -76,4 +79,4 @@ deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/dev-requirements.txt
     -e.[session]
-commands = pytest -v --profile spark_session {posargs} -n4 tests/functional/adapter/*
+commands = /bin/bash -c '{envpython} -m pytest -v --profile spark_session {posargs} -n4 tests/functional/adapter/*'