diff --git a/crates/goose-mcp/src/developer/mod.rs b/crates/goose-mcp/src/developer/mod.rs
index ca56d8a8bf27..7674a642a24d 100644
--- a/crates/goose-mcp/src/developer/mod.rs
+++ b/crates/goose-mcp/src/developer/mod.rs
@@ -3316,6 +3316,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn test_process_shell_output_short() {
         let dir = TempDir::new().unwrap();
         std::env::set_current_dir(dir.path()).unwrap();
@@ -3332,6 +3333,7 @@ mod tests {
     }
 
     #[test]
+    #[serial]
     fn test_process_shell_output_empty() {
         let dir = TempDir::new().unwrap();
         std::env::set_current_dir(dir.path()).unwrap();