diff --git a/pyproject.toml b/pyproject.toml
index 7c03b51c..26da4d87 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,8 @@ dynamic = ["version"]
 dependencies = [
     "aind-data-schema==0.17.3",
     "aind-metadata-service[client]",
-    "scanimage-tiff-reader==1.4.1.4"
+    "scanimage-tiff-reader==1.4.1.4",
+    "pyyaml==6.0.1"
 ]
 
 [project.optional-dependencies]