diff --git a/.buildkite/environment.yml b/.buildkite/environment.yml
index 4365dad..84ff75b 100644
--- a/.buildkite/environment.yml
+++ b/.buildkite/environment.yml
@@ -1,4 +1,3 @@
-name: wilson
 channels:
   - bioconda
   - conda-forge
@@ -17,12 +16,9 @@ dependencies:
   - r-shinyjs
   - r-viridis
   - r-rje
-#  - r-grdevices # base package
-#  - r-grid # base package
   - r-plyr
   - r-circlize
   - bioconductor-complexheatmap
-#  - r-stats # base package
   - r-gplots
   - r-reshape
   - r-rintrojs
@@ -38,11 +34,11 @@ dependencies:
   - r-shinycssloaders
   - r-log4r
   - r-openssl
-#  - r-methods # base package
   - r-r6
   - r-stringi >=1.2.3
   - r-devtools
   - r-roxygen2
   - r-rmarkdown
   - r-testthat
-#  - r-vdiffr # not yet in conda-forge
+  - r-vdiffr
+  - qpdf