diff --git a/.ci_support/environment-integration.yml b/.ci_support/environment-integration.yml
index aa1c0c14..8a2bc971 100644
--- a/.ci_support/environment-integration.yml
+++ b/.ci_support/environment-integration.yml
@@ -9,7 +9,7 @@ dependencies:
 - papermill
 - atomistics =0.3.4
 - cloudpickle =3.1.2
-- flux-core =0.79.0
+- flux-core =0.81.0
 - gpaw =25.7.0
 - hatchling =1.27.0
 - hatch-vcs =0.5.0
diff --git a/.github/workflows/pipeline.yml b/.github/workflows/pipeline.yml
index 33cf959d..77307785 100644
--- a/.github/workflows/pipeline.yml
+++ b/.github/workflows/pipeline.yml
@@ -198,7 +198,7 @@ jobs:
       shell: bash -l {0}
       timeout-minutes: 5
       run: |
-        echo -e '- coverage\n- flux-core =0.79.0'>> .ci_support/environment-mpich.yml
+        echo -e '- coverage\n- flux-core =0.81.0'>> .ci_support/environment-mpich.yml
         cat .ci_support/environment-mpich.yml
     - uses: conda-incubator/setup-miniconda@v3
       with:
@@ -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 =0.81.0\n- flux-pmix=0.6.0' >> .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..2b3ba114 100644
--- a/binder/environment.yml
+++ b/binder/environment.yml
@@ -5,7 +5,7 @@ dependencies:
 - numpy =2.3.3
 - openmpi
 - cloudpickle =3.1.2
-- flux-core =0.79.0
+- flux-core =0.81.0
 - flux-pmix =0.6.0
 - hatchling =1.27.0
 - hatch-vcs =0.5.0