diff --git a/certbot-dns-dnsimple/snap/hooks/post-refresh b/certbot-dns-dnsimple/snap/hooks/post-refresh
index 1a1fbcf88..b558072f9 100644
--- a/certbot-dns-dnsimple/snap/hooks/post-refresh
+++ b/certbot-dns-dnsimple/snap/hooks/post-refresh
@@ -13,7 +13,7 @@ echo "cb_installed: $cb_installed" >> "$SNAP_DATA/debuglog"
 cb_required=$(grep -oP "certbot>=\K.*(?=')" $SNAP/setup.py)
 echo "cb_required: $cb_required" >> "$SNAP_DATA/debuglog"
 
-python -c 'from distutils.version import LooseVersion;\
+python3 -c 'from distutils.version import LooseVersion;\
   exit(1) if LooseVersion("$cb_installed") < LooseVersion("$cb_required") else exit(0)'
 
 if [ "$?" -eq 1 ]; then