diff --git a/pkgs/by-name/ai/aider-chat/package.nix b/pkgs/by-name/ai/aider-chat/package.nix
index 4317402281b1..65edbeccc4ea 100644
--- a/pkgs/by-name/ai/aider-chat/package.nix
+++ b/pkgs/by-name/ai/aider-chat/package.nix
@@ -51,9 +51,11 @@ python3.pkgs.buildPythonApplication {
       numpy
       packaging
       pathspec
+      pexpect
       pillow
       playwright
       prompt-toolkit
+      ptyprocess
       pypager
       pypandoc
       pyperclip