diff --git a/.github/workflows/pytest.yml b/.github/workflows/pytest.yml
index 9e46e8b0..8f916f18 100644
--- a/.github/workflows/pytest.yml
+++ b/.github/workflows/pytest.yml
@@ -29,7 +29,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, macOS-13, ubuntu-latest]
+        os: [macos-14, ubuntu-24.04]
         python-version: ['3.10', '3.11']
 
     runs-on: ${{ matrix.os }}
@@ -44,7 +44,7 @@ jobs:
         environment-file: environment-dev.yml
         python-version: ${{ matrix.python-version }}
         miniforge-variant: Mambaforge
-        miniforge-version: 4.9.2-4
+        #miniforge-version: 24.11.0
         use-mamba: true
 
     - name: Install package
@@ -63,7 +63,7 @@ jobs:
 
   test-tutorials:
     if: ${{ github.event.issue.pull_request && github.event.comment.body== '/testtutorials'}}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - name: Put a reaction to the comment
       run: gh api graphql --silent --raw-field query="mutation AddReaction {addReaction(input:{subjectId:\"$NODE_ID\",content:EYES}){reaction{content}subject{id}}}"
@@ -96,14 +96,14 @@ jobs:
         PR_NUMBER: ${{ github.event.issue.number }}
 
     - name: Check out repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     - name: Build environment
-      uses: conda-incubator/setup-miniconda@v2
+      uses: conda-incubator/setup-miniconda@v3
       with:
         environment-file: environment-dev.yml
         miniforge-variant: Mambaforge
-        miniforge-version: 4.9.2-4
+        #miniforge-version: 24.11.0
         use-mamba: true
 
     - name: Install package
diff --git a/environment-dev.yml b/environment-dev.yml
index 3285b1f1..f46fa5a5 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -8,7 +8,7 @@ dependencies:
   - gmso >=0.12.0
   - gsd >=3.0
   - grits >=0.5.0
-  - hoomd >=4.5
+  - hoomd >=4.5, <5.0
   - mbuild >=0.17.0
   - numpy <2.0
   - openbabel >=3
diff --git a/environment.yml b/environment.yml
index 4caf1ddc..1b3fa0c3 100644
--- a/environment.yml
+++ b/environment.yml
@@ -8,7 +8,7 @@ dependencies:
   - gmso >=0.12.0
   - gsd >=3.0
   - grits >=0.5.0
-  - hoomd >=4.5
+  - hoomd >=4.5, <5.0
   - mbuild >=0.17.0
   - numpy <2.0
   - openbabel >=3