diff --git a/renew_cert.sh b/renew_cert.sh
index a8b6f52..5952af6 100644
--- a/renew_cert.sh
+++ b/renew_cert.sh
@@ -44,10 +44,10 @@ fi
 
 if [ ! -s "$acme_tiny" ]; then
   echo -n "Python script acme_tiny.py is missing. Downloading... "
-  wget -qO "$acme_tiny" https://raw.githubusercontent.com/diafygi/acme-tiny/4.0.4/acme_tiny.py
+  wget -qO "$acme_tiny" https://raw.githubusercontent.com/diafygi/acme-tiny/4.1.0/acme_tiny.py
   if [ $? != 0 ]; then
     echo -ne "\nCould not download acme_tiny.py script.\n"
-    rm -rf "$acme_tiny"
+    rm -f "$acme_tiny"
     exit 1
   fi
   echo -ne "Finished\n"