diff --git a/tests/docker-compose.yml b/tests/docker-compose.yml
index 9986541..446ecd4 100644
--- a/tests/docker-compose.yml
+++ b/tests/docker-compose.yml
@@ -27,7 +27,7 @@ services:
     links:
       - splunk
     environment:
-      - SPLUNK_HEC_URL=https://splunk:8088
+      - SPLUNK_HEC_URL=http://splunk:8088
       - SPLUNK_HEC_TOKEN=a778f63a-5dff-4e3c-a72c-a03183659e94
       - SC4S_SOURCE_TLS_ENABLE=no
       - SC4S_DEST_SPLUNK_HEC_TLS_VERIFY=no