diff --git a/tests/ci_install.sh b/tests/ci_install.sh
index e01cae7b85e..700af73bb57 100644
--- a/tests/ci_install.sh
+++ b/tests/ci_install.sh
@@ -43,11 +43,11 @@ fi
 if [[ ${dependencies} == "minimal" ]]; then
     python -m pip install -e .[test,minimal]
 else
-    # Cython and numpy as build-time requirements to the following optional deps in yt
+    # Cython and numpy are build-time requirements to the following optional deps in yt
     # - cartopy
     # - netcdf4
     # - pyqt5
-    # The build system are however not specified properly in these projects at the moment
+    # The build system is however not specified properly in these projects at the moment
     # which means we have to install the build-time requirements first.
     # It is possible that these problems will be fixed in the future if upstream projects
     # include a pyproject.toml file or use any pip-comptatible solution to remedy this.