diff --git a/fetch.sh b/fetch.sh
index f03fb2d..4fd6c93 100755
--- a/fetch.sh
+++ b/fetch.sh
@@ -5,6 +5,7 @@ export PUP_BINARY="$(which pup)"
 if ! command -v pup &> /dev/null
 then
   wget https://github.com/ericchiang/pup/releases/download/v0.4.0/pup_v0.4.0_linux_amd64.zip -O pup.zip
+  echo "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  pup.zip" | sha256sum --check 
   unzip pup.zip
   rm pup.zip
   chmod +x ./pup