diff --git a/proxmox/terraform/prepare-workstation.md b/proxmox/terraform/prepare-workstation.md
index a3c7258..80f1f65 100644
--- a/proxmox/terraform/prepare-workstation.md
+++ b/proxmox/terraform/prepare-workstation.md
@@ -1,22 +1,33 @@
 This is the required tooling for the following to work.
 
+# proxmox
+
+Current supported version is 13.5 from debian stable
+
+```
+$ cat /etc/apt/preferences.d/terraform
+Package: terraform
+Pin: version 0.13.*
+Pin-Priority: 999
+```
+
 # terraform-provider-proxmox
 
 go module to install
 
 ```
 git clone https://github.com/Telmate/terraform-provider-proxmox
 cd terraform-provider-proxmox
 
 # compile terraform proxmox provider
 make
 
 # Install so that terraform actually sees the plugin
 mkdir -p ~/.terraform.d/plugins/local/telmate/proxmox/0.0.1/linux_amd64
 cp -v ./bin/* ~/.terraform.d/plugins/local/telmate/proxmox/0.0.1/linux_amd64
 ```
 
 At the end of this, `terraform init` within /proxmox/terraform/ should now
 work.
 
 Doc: https://github.com/Telmate/terraform-provider-proxmox/blob/master/README.md