diff --git a/pkgs/by-name/co/codecov-cli/package.nix b/pkgs/by-name/co/codecov-cli/package.nix
index 3fe49668b9e9..9359c5f8734c 100644
--- a/pkgs/by-name/co/codecov-cli/package.nix
+++ b/pkgs/by-name/co/codecov-cli/package.nix
@@ -28,6 +28,7 @@ python3Packages.buildPythonApplication rec {
   pythonRelaxDeps = [
     "httpx"
     "responses"
+    "test-results-parser"
     "tree-sitter"
   ];