diff --git a/update-version.sh b/update-version.sh
index d2e5019..2fadb57 100755
--- a/update-version.sh
+++ b/update-version.sh
@@ -1,4 +1,4 @@
-#/usr/bin/env bash
+#!/usr/bin/env bash
 
 # This script updates the version number in the README.md files of all modules
 # to the latest tag in the repository. It is intended to be run from the root
@@ -9,13 +9,13 @@ set -euo pipefail
 LATEST_TAG=$(git describe --abbrev=0 --tags | sed 's/^v//') || exit $?
 
 find . -name README.md | while read -r file; do
-    tmpfile=$(mktemp /tmp/tempfile.XXXXXX)
-    awk -v tag="$LATEST_TAG" '{
-        if ($1 == "version" && $2 == "=") {
-            sub(/"[^"]*"/, "\"" tag "\"")
-            print
-        } else {
-            print
-        }
-    }' "$file" > "$tmpfile" && mv "$tmpfile" "$file"
+  tmpfile=$(mktemp /tmp/tempfile.XXXXXX)
+  awk -v tag="$LATEST_TAG" '{
+    if ($1 == "version" && $2 == "=") {
+      sub(/"[^"]*"/, "\"" tag "\"")
+      print
+    } else {
+      print
+    }
+  }' "$file" > "$tmpfile" && mv "$tmpfile" "$file"
 done