diff --git a/README.md b/README.md
index 4816086..e577d8f 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ remote$ clush -l root ./cgi-updater-payload.sh
 Verify R and biopython versions:
 
 ```sh
-remote$ clush "R --version | awk 'NR == 1 {print \$3}'"
-remote$ clush "pip show biopython | awk '/Version/ {print \$2}'"
+remote$ clush -B "R --version | awk 'NR == 1 {print \$3}'"
+remote$ clush -B "pip show biopython | awk '/Version/ {print \$2}'"
+remote$ clush -B dpkg-query --showformat='\${Version}' --show rstudio
 ```