diff --git a/NEWS.md b/NEWS.md
index 7665934f..53a98d26 100755
--- a/NEWS.md
+++ b/NEWS.md
@@ -63,8 +63,9 @@
 * Other small fixes
 
 #### Other
-* Unit testing for all Linux and macOS releases of R 3.1 and higher: https://travis-ci.org/msberends/AMR
-* Added units tests for Windows with AppVeyor
+* Added integration tests (check if everything works as expected) for all releases of R 3.1 and higher
+  * Linux and macOS: https://travis-ci.org/msberends/AMR
+  * Windows: https://ci.appveyor.com/project/msberends/amr
 * Added thesis advisors to DESCRIPTION file
 
 # 0.2.0 (latest stable version)
diff --git a/README.md b/README.md
index cb452ebe..fe16dd61 100755
--- a/README.md
+++ b/README.md
@@ -70,7 +70,7 @@ With the `MDRO` function (abbreviation of Multi Drug Resistant Organisms), you c
 This package [is published on CRAN](http://cran.r-project.org/package=AMR), the official R network.
 
 ### Install from CRAN
-[![CRAN_Badge](https://img.shields.io/cran/v/AMR.svg?label=CRAN&colorB=3679BC)](http://cran.r-project.org/package=AMR) [![CRAN_Downloads](https://cranlogs.r-pkg.org/badges/grand-total/AMR)](http://cran.r-project.org/package=AMR)
+[![CRAN_Badge](https://www.r-pkg.org/badges/version/dplyr)](http://cran.r-project.org/package=AMR) [![CRAN_Downloads](https://cranlogs.r-pkg.org/badges/grand-total/AMR)](http://cran.r-project.org/package=AMR)
 
 (Note: Downloads measured only by [cran.rstudio.com](https://cran.rstudio.com/package=AMR), this excludes e.g. the official [cran.r-project.org](https://cran.r-project.org/package=AMR))
 
diff --git a/appveyor.yml b/appveyor.yml
index c6c14384..9e7b0275 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -15,6 +15,35 @@ cache:
 
 # Adapt as necessary starting from here
 
+environment:
+  global:
+    R_ARCH: x64
+    GCC_PATH: mingw_64
+    WARNINGS_ARE_ERRORS: 1
+
+  matrix:
+  - R_VERSION: 3.1
+    WARNINGS_ARE_ERRORS: 0
+
+  - R_VERSION: 3.2
+
+  - R_VERSION: 3.3
+
+  - R_VERSION: 3.4
+
+  - R_VERSION: release
+
+  - R_VERSION: devel
+
+notifications:
+- provider: Email
+  to: m.s.berends@umcg.nl
+  subject: 'AppVeyor: status changed'
+  message: The status of https://ci.appveyor.com/project/msberends/amr has changed.
+  on_build_success: false
+  on_build_failure: false
+  on_build_status_changed: true
+
 build_script:
   - travis-tool.sh install_deps
 
diff --git a/tests/testthat/test-atc.R b/tests/testthat/test-atc.R
index 6c1240e9..061247ed 100755
--- a/tests/testthat/test-atc.R
+++ b/tests/testthat/test-atc.R
@@ -1,6 +1,8 @@
 context("atc.R")
 
 test_that("atc_property works", {
+  skip_if(Sys.info()['sysname'] == "Windows") # security error on AppVeyor
+
   if (!is.null(curl::nslookup("www.whocc.no", error = FALSE))) {
     expect_equal(tolower(atc_property("J01CA04", property = "Name")), "amoxicillin")
     expect_equal(atc_property("J01CA04", property = "unit"), "g")