diff --git a/.appveyor.yml b/.appveyor.yml
index 20d05a2..8d041e6 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -5,12 +5,13 @@ environment:
 
 install:
   - set PATH=C:\Python37;%PATH%
-  - cmd: python -m pip install cibuildwheel
+  - set BUILD_OUTPUT_PATH=windows-tgcrypto-wheels
+  - cmd: pip install -r requirements-ci.txt
 
 build_script:
-  - cmd: python -m cibuildwheel --output-dir windows-tgcrypto-wheels
-  - ps: Compress-Archive windows-tgcrypto-wheels/* windows-tgcrypto-wheels.zip
+  - cmd: cibuildwheel --output-dir %BUILD_OUTPUT_PATH%
+  - ps: Compress-Archive "$env:BUILD_OUTPUT_PATH/*" "$env:BUILD_OUTPUT_PATH.zip"
 
 artifacts:
-  - path: "windows-tgcrypto-wheels.zip"
+  - path: "$(BUILD_OUTPUT_PATH).zip"
     name: wheels
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 8fccb37..6e17d3d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,7 +16,7 @@ matrix:
     - sudo: required
       services: docker
 
-install: pip3 install cibuildwheel
+install: pip3 install -r requirements-ci.txt
 
 script:
   - cibuildwheel --output-dir $BUILD_OUTPUT_PATH
diff --git a/requirements-ci.txt b/requirements-ci.txt
new file mode 100644
index 0000000..68a965a
--- /dev/null
+++ b/requirements-ci.txt
@@ -0,0 +1 @@
+cibuildwheel
\ No newline at end of file