diff --git a/.travis.yml b/.travis.yml
index 962725cb..9af95f30 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,6 +39,5 @@ deploy:
     secure: "K11y6w6bw8pu1iCTXCSnZJ7H++aU4dud/qOl962SvI+LV+qn4JNQQ+MtD90p6RFejjQyZZF5xCuupVwwIyHDNJjauBmzrn7M4gPyKpoEyTPhh1ZVBlY5AK8CNUzMjaV6xNZwm4abSp+eJ+RE1JMdJNqH2H5urlpYfwqhOMCBa4U="
   on:
     tags: true
-  distributions: ""
   skip_cleanup: true
-
+  skip_existing: true
diff --git a/appveyor.yml b/appveyor.yml
index c1d8aed5..03f6a2cb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -107,8 +107,8 @@ artifacts:
   - path: Output\*
 
 on_success:
-  - cmd: "if [%APPVEYOR_REPO_TAG%]==[true] twine upload dist\\*.whl"
-  - cmd: "if [%APPVEYOR_REPO_TAG%]==[true] twine upload dist\\*.tar.gz || exit 0"
+  - cmd: "if [%APPVEYOR_REPO_TAG%]==[true] twine upload --skip-existing dist\\*.whl"
+  - cmd: "if [%APPVEYOR_REPO_TAG%]==[true] twine upload --skip-existing dist\\*.tar.gz"
 
 deploy:
   provider: GitHub