diff --git a/pyproject.toml b/pyproject.toml
index 61dd8a018c..09d8737e4c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -55,7 +55,6 @@ dev = [
     "numpydoc",
     "ophyd",
     "pandas",
-    "pims",
     "pipdeptree",
     "pre-commit",
     "pydata-sphinx-theme>=0.12",