diff --git a/R/build_binaries.R b/R/build_binaries.R
index e003e37..5f26040 100644
--- a/R/build_binaries.R
+++ b/R/build_binaries.R
@@ -188,6 +188,9 @@ build_single_tag <- function(
 
     total_build_time <- round(difftime(Sys.time(), t1, units = "secs"), 2)
 
+    # bytes to MB in binary format
+    file_size <- as.numeric(fs::file_size(sprintf("%s/%s_%s.tar.gz", dir_out_bin, package_name, tag))) / (1024^2)
+
     # skip DB connection if package already exists
     if (file.exists(sprintf("%s/%s_%s.tar.gz", dir_out_bin, package_name, tag))) {
       con <- DBI::dbConnect(RPostgres::Postgres(),
@@ -195,8 +198,10 @@ build_single_tag <- function(
         port = 15432, user = "arm_binaries", password = Sys.getenv("PGPASS")
       )
       dbExecute(con, sprintf(
-        "UPDATE single_builds set build_duration = %s WHERE package_name = '%s' and platform = '%s' and tag = '%s'",
-        total_build_time, package_name, platform, tag
+        "UPDATE single_builds SET build_duration = $1, size = $2 WHERE package_name = $3 and platform = $4 and tag = $5",
+        params = list(
+          total_build_time, file_size, package_name, platform, tag
+        )
       ))
       dbDisconnect(con)
     }