1 files changed, 1 insertions, 1 deletions

diff --git a/README.md b/README.md
index 4a18e35..d3f4e6f 100644
--- a/README.md
+++ b/README.md
@@ -3,4 +3,4 @@
 [![](http://www.r-pkg.org/badges/version/chemCal)](http://cran.r-project.org/package=chemCal)
 
 Static documentation of this R package can be found unter
-http://pkgdown.jrwb.de/chemCal
+https://pkgdown.jrwb.de/chemCal