diff --git a/scripts/publish-npm.sh b/scripts/publish-npm.sh
index 37bdb8ae..ec840631 100755
--- a/scripts/publish-npm.sh
+++ b/scripts/publish-npm.sh
@@ -5,7 +5,8 @@
 function publish_npm() {
   local lib=$1
 
-  LOCAL_SHASUM=$(npm show @dfinity/"$lib" dist.shasum)
+  LOCAL_SHASUM=$(npm pack -w packages/"$lib" --json  | jq '.[] | .shasum' | sed -r 's/^"|"$//g')
+
   NPM_TARBALL=$(npm show @dfinity/"$lib" dist.tarball)
   NPM_SHASUM=$(curl -s "$NPM_TARBALL" 2>&1 | shasum  | cut -f1 -d' ')