diff --git a/chitubox/update.sh b/chitubox/update.sh
new file mode 100755
index 0000000..aae3717
--- /dev/null
+++ b/chitubox/update.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+cd -- "$( dirname -- "${BASH_SOURCE[0]}" )"
+
+file="$1"
+version=$(grep -oP '\d\.\d\.\d' <<< "$file")
+checksum=$(sha256sum $file | awk '{print $1}')
+
+echo "New version for ${PWD##*/}: version=$version, checksum=$checksum"
+
+sed -i "s|<version>[^<]*</version>|<version>$version</version>|" "${PWD##*/}.nuspec"
+sed -i "/File64/s|[^\\]*$|${file##*/}'|" tools/chocolateyInstall.ps1
+sed -i "/Checksum64/s|=.*|= '$checksum'|" tools/chocolateyInstall.ps1