diff --git a/R/package_index.R b/R/package_index.R
index 3ea508b..8e9b287 100644
--- a/R/package_index.R
+++ b/R/package_index.R
@@ -91,7 +91,7 @@ upload_package_index <- function(
   purrr::walk2(
     c("PACKAGES", "PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz"),
     sprintf("%s/%s", remote_bin_dir, c("PACKAGES", "PACKAGES.db", "PACKAGES.rds", "PACKAGES.gz")),
-    \(x, y) s3fs::s3_file_upload(x, y, overwrite = TRUE)
+    \(x, y) s3fs::s3_file_upload(x, y, overwrite = TRUE, CacheControl = "no-cache")
   )
 
   return(invisible(TRUE))