diff --git a/.travis.yml b/.travis.yml
index 51d31a9..3387489 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -50,25 +50,25 @@ matrix:
       before_install:
         - pip3 install -U pip
     - name: "Python 3.6 on Windows"
-        os: windows
-        language: shell
-        before_install:
-          - choco install python --version 3.6.0
-          - python -m pip install --upgrade pip
-          - chcp.com 65001
-        env:
-          - PATH=/c/Python36:/c/Python36/Scripts:$PATH
-          - PYTHONIOENCODING=UTF-8
+      os: windows
+      language: shell
+      before_install:
+        - choco install python --version 3.6.0
+        - python -m pip install --upgrade pip
+        - chcp.com 65001
+      env:
+        - PATH=/c/Python36:/c/Python36/Scripts:$PATH
+        - PYTHONIOENCODING=UTF-8
     - name: "Python 3.7 on Windows"
-        os: windows
-        language: shell
-        before_install:
-          - choco install python --version 3.7.0
-          - python -m pip install --upgrade pip
-          - chcp.com 65001
-        env:
-          - PATH=/c/Python37:/c/Python37/Scripts:$PATH
-          - PYTHONIOENCODING=UTF-8
+      os: windows
+      language: shell
+      before_install:
+        - choco install python --version 3.7.0
+        - python -m pip install --upgrade pip
+        - chcp.com 65001
+      env:
+        - PATH=/c/Python37:/c/Python37/Scripts:$PATH
+        - PYTHONIOENCODING=UTF-8
     - name: "Python 3.8 on Windows"
       os: windows           # Windows 10.0.17134 N/A Build 17134
       language: shell
@@ -80,15 +80,15 @@ matrix:
         - PATH=/c/Python38:/c/Python38/Scripts:$PATH
         - PYTHONIOENCODING=UTF-8
     - name: "Python 3.9 on Windows"
-        os: windows           # Windows 10.0.17134 N/A Build 17134
-        language: shell
-        before_install:
-          - choco install python --version 3.9.0
-          - python -m pip install --upgrade pip
-          - chcp.com 65001
-        env:
-          - PATH=/c/Python39:/c/Python39/Scripts:$PATH
-          - PYTHONIOENCODING=UTF-8
+      os: windows           # Windows 10.0.17134 N/A Build 17134
+      language: shell
+      before_install:
+        - choco install python --version 3.9.0
+        - python -m pip install --upgrade pip
+        - chcp.com 65001
+      env:
+        - PATH=/c/Python39:/c/Python39/Scripts:$PATH
+        - PYTHONIOENCODING=UTF-8
 
 install:
   - pip3 install codecov