diff --git a/changelogs/fragments/451_firewall_fix_protocol_parameter.yml b/changelogs/fragments/451_firewall_fix_protocol_parameter.yml
new file mode 100644
index 0000000..9dfc6bd
--- /dev/null
+++ b/changelogs/fragments/451_firewall_fix_protocol_parameter.yml
@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - firewall - Fix issue where opening a specific port resulted in opening the whole protocol of the specified port