diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 33cf959d..499088d0 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -229,7 +229,7 @@ jobs:
       shell: bash -l {0}
       timeout-minutes: 5
       run: |
-        echo -e '- coverage\n- flux-core =0.79.0\n- flux-pmix=0.6.0' >> .ci_support/environment-openmpi.yml
+        echo -e '- coverage\n- flux-core =0.79.0\n- flux-pmix=0.7.0\n- openmpi=5.0.8=h2fe1745_109' >> .ci_support/environment-openmpi.yml
         cat .ci_support/environment-openmpi.yml
     - uses: conda-incubator/setup-miniconda@v3
       with:
diff --git a/binder/environment.yml b/binder/environment.yml
index 223ae5b3..8e7de346 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -6,7 +6,7 @@ dependencies:
 - openmpi
 - cloudpickle =3.1.2
 - flux-core =0.79.0
-- flux-pmix =0.6.0
+- flux-pmix =0.7.0
 - hatchling =1.27.0
 - hatch-vcs =0.5.0
 - h5py =3.15.1