diff --git a/.travis.yml b/.travis.yml
index 0d8f24f..ee49bde 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ language: python
 python:
   - "3.5"
   - "3.6"
-  - "3.7"
+  - "3.7.11"
   - "3.8"
 install:
   - pip install --upgrade pip