diff --git a/SECURITY.md b/SECURITY.md
index e0af45e1..c8530d50 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -3,6 +3,7 @@ This project currently supports the following versions of Proxmox VE:
 
 | Version | Supported          |
 | ------- | ------------------ |
+| 8.3.x   | :white_check_mark: |
 | 8.2.x   | :white_check_mark: |
 | 8.1.x   | :white_check_mark: |
 | 8.0.x   | Limited support* ❕| 
diff --git a/misc/post-pve-install.sh b/misc/post-pve-install.sh
index 123929f2..762d063f 100644
--- a/misc/post-pve-install.sh
+++ b/misc/post-pve-install.sh
@@ -231,7 +231,7 @@ while true; do
   esac
 done
 
-if ! pveversion | grep -Eq "pve-manager/8.[0-2]"; then
+if ! pveversion | grep -Eq "pve-manager/8.[0-3]"; then
   msg_error "This version of Proxmox Virtual Environment is not supported"
   echo -e "Requires Proxmox Virtual Environment Version 8.0 or later."
   echo -e "Exiting..."