diff --git a/data_safe_haven/resources/software_repositories/allowlists/cran.allowlist b/data_safe_haven/resources/software_repositories/allowlists/cran.allowlist
index d65ef196ea..9624ec7060 100644
--- a/data_safe_haven/resources/software_repositories/allowlists/cran.allowlist
+++ b/data_safe_haven/resources/software_repositories/allowlists/cran.allowlist
@@ -1,4 +1,5 @@
 DBI
+MASS
 RPostgres
 Rcpp
 bit
diff --git a/data_safe_haven/resources/software_repositories/allowlists/pypi.allowlist b/data_safe_haven/resources/software_repositories/allowlists/pypi.allowlist
index 3ab3c07dfe..704937893f 100644
--- a/data_safe_haven/resources/software_repositories/allowlists/pypi.allowlist
+++ b/data_safe_haven/resources/software_repositories/allowlists/pypi.allowlist
@@ -15,6 +15,7 @@ pyodbc
 pyparsing
 python-dateutil
 pytz
+scikit-learn
 six
 typing-extensions
 tzdata