diff --git a/.appveyor.yml b/.appveyor.yml
index c657982f..9eaa9d25 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -19,7 +19,7 @@ skip_commits:
 
 skip_branch_with_pr: true
 
-clone_depth: 50    #same as travis, see https://www.appveyor.com/blog/2014/06/04/shallow-clone-for-git-repositories/
+clone_depth: 15
 
 image: Visual Studio 2017
 
diff --git a/.travis.yml b/.travis.yml
index ba664c7c..9a0d3ce8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,9 @@
 language: cpp
 compiler: gcc
 
+git:
+  depth: 15
+
 matrix:
   include:
   #Ubuntu Xenial (Debug only)