diff --git a/README.md b/README.md
index dac7c1e..85a5c8f 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 ## Requirements
 * You need to have the [Bitwarden CLI tool](https://bitwarden.com/help/cli/) installed and available in the `$PATH` as `bw`. See below for detailed instructions.
 * `ssh-agent` must be running in the current session.
+* the bitwarden free version it's not supported.
 
 ## Installation
 Just save the file `bw_add_sshkeys.py` in a folder where it can by found when calling it from the command line. On linux you can see these folders by running `echo $PATH` from the command line. To install for a single user, you can - for example - save the script under `~/.local/bin/` and make it executable by running `chmod +x ~/.local/bin/bw_add_sshkeys.py`.
@@ -38,4 +39,4 @@ Download the [Bitwarden CLI](https://bitwarden.com/help/cli/), extract the binar
 
 On linux you will likely want to move the executable to `~/.local/bin` and make it executable `chmod +x ~/.local/bin/bw`. `~/.local/bin` is likely already set as a path. You can confirm that by running `which bw`, which should return the path to the executable. You can use the same approach to turn `bw_add_sshkeys.py` into an executable.
 
-If you want to build the Bitwarden CLI by yourself, see [these instructions on the bitwarden github page](https://contributing.bitwarden.com/getting-started/clients/cli).
\ No newline at end of file
+If you want to build the Bitwarden CLI by yourself, see [these instructions on the bitwarden github page](https://contributing.bitwarden.com/getting-started/clients/cli).