diff --git a/tests/requirements.txt b/tests/requirements.txt
index 5bb5756..84f4d17 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -9,7 +9,7 @@
 pytest
 jinja2
 jinja2-time
-splunk-sdk
+splunk-sdk=1.6.11
 flake8
 pytz
 flaky