Update README.md

veraPDF · Oct 28, 2015 · dc9e54a · dc9e54a
1 parent 7fda63a
commit dc9e54a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -13,5 +13,5 @@ This test suite complements [Isartor](http://www.pdfa.org/2011/08/isartor-test-s
 <img src="http://verapdf.openpreservation.org/wp-content/uploads/sites/3/2015/06/veraPDF-logo-200.png" alt="veraPDF Consortium"/>
 © 2015 [veraPDF Consortium](http://www.verapdf.org "veraPDF Project home page")
 
-![Creative Commons License](https://licensebuttons.net/l/by/3.0/88x31.png)
+![Creative Commons License](https://licensebuttons.net/l/by/4.0/88x31.png)
 This work is licensed under a [Creative Commons Attribution 4.0 International (CC BY 4.0)](https://creativecommons.org/licenses/by/4.0/)