diff --git a/.circleci/config.yml b/.circleci/config.yml
index 61f3c06b9a..69dd2472ae 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -218,7 +218,6 @@ workflows:
   test:
     jobs:
       - build
-      # Temporarily disable to avoid compiling numpy on 32 bit
-      # - build-32
+      - build-32
 
 
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index bb02797a42..75831305ab 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -61,8 +61,7 @@ jobs:
       fail-fast: false
       matrix:
         python: [ 3.9, 3.11 ]
-        # Use macos-13 to run on x86, for simplicity
-        os:  [ macos-13, ubuntu-latest, windows-latest ]
+        os:  [ macos-latest, ubuntu-latest, windows-latest ]
     defaults:
       run:
         shell: bash
@@ -76,7 +75,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Install OSX libs
-        if: matrix.os == 'macos-13'
+        if: matrix.os == 'macos-latest'
         run: |
           brew install libxml2 libxslt
 
diff --git a/python/requirements/CI-tests-pip/requirements.txt b/python/requirements/CI-tests-pip/requirements.txt
index 7fa7730bc9..96010f3958 100644
--- a/python/requirements/CI-tests-pip/requirements.txt
+++ b/python/requirements/CI-tests-pip/requirements.txt
@@ -7,7 +7,7 @@ portion==2.4.2
 xmlunittest==0.5.0
 biopython==1.83
 dendropy==5.0.1
-networkx==3.3
+networkx==3.2.1
 msgpack==1.0.8
 newick==1.9.0
 kastore==0.3.3