diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 7c2414c..1b16f28 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -66,8 +66,6 @@ jobs:
           - package: ccdproc
             extras: [ test ]
           - package: costools
-          #- package: pysynphot
-          #  extras: [ test ]
           - package: reftools
             extras: [ test ]
           - package: synphot
diff --git a/environment.yaml b/environment.yaml
index 0462752..a8c6727 100644
--- a/environment.yaml
+++ b/environment.yaml
@@ -30,7 +30,8 @@ dependencies:
       - ginga
       - jwst>=1.6.2
       - nictools
-      - pysynphot
+      - pytest
+      - pytest-xdist
       - reftools
       - stcal<1.3.4
       - stdatamodels<1.0.0