diff --git a/.github/workflows/audit-check.yml b/.github/workflows/audit-check.yml
index 332799198..100f7f20d 100644
--- a/.github/workflows/audit-check.yml
+++ b/.github/workflows/audit-check.yml
@@ -4,6 +4,10 @@ on:
     branches:
       - "**"
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   security_audit:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index cf1ad22fd..24fd5a353 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -10,6 +10,10 @@ on:
     branches:
       - "**"
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   tests:
     name: Unit Tests
diff --git a/.github/workflows/build-crate.yml b/.github/workflows/build-crate.yml
index 746095a69..4324374f5 100644
--- a/.github/workflows/build-crate.yml
+++ b/.github/workflows/build-crate.yml
@@ -10,6 +10,10 @@ on:
     branches:
       - "**"
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   build_crate:
     name: Build crate
diff --git a/.github/workflows/build-npm.yml b/.github/workflows/build-npm.yml
index 4679bd3c8..511902ced 100644
--- a/.github/workflows/build-npm.yml
+++ b/.github/workflows/build-npm.yml
@@ -10,6 +10,10 @@ on:
     branches:
       - "**"
 
+defaults:
+  run:
+    shell: bash
+
 jobs:
   build_npm:
     name: Build npm
diff --git a/.github/workflows/build-riscv64.yml b/.github/workflows/build-riscv64.yml
index 4099724be..5703d212a 100644
--- a/.github/workflows/build-riscv64.yml
+++ b/.github/workflows/build-riscv64.yml
@@ -10,6 +10,10 @@ on:
     branches:
       - "**"
 
+defaults:
+  run:
+    shell: bash
+
 permissions:
   id-token: write
   contents: read
@@ -124,7 +128,6 @@ jobs:
 
       - name: List existing wheels
         if: env.RELEASE == 'true'
-        shell: sh
         run: |
           aws s3 ls s3://download.chia.net/simple/chia-rs/ > existing_wheel_list_raw
           cat existing_wheel_list_raw
@@ -132,20 +135,17 @@ jobs:
 
       - name: List new wheels
         if: env.RELEASE == 'true'
-        shell: sh
         run: |
           (cd target/wheels/; ls chia_rs-*.whl) > new_wheel_list
           cat new_wheel_list | xargs -I % sh -c 'ls -l target/wheels/%'
 
       - name: Choose wheels to upload
         if: env.RELEASE == 'true'
-        shell: sh
         run: |
           grep -F -x -v -f existing_wheel_list new_wheel_list > upload_wheel_list
           cat upload_wheel_list
 
       - name: Upload wheels
         if: env.RELEASE == 'true'
-        shell: sh
         run: |
           cat upload_wheel_list | xargs -I % sh -c 'aws s3 cp target/wheels/% s3://download.chia.net/simple/chia-rs/'
diff --git a/.github/workflows/build-wheels.yml b/.github/workflows/build-wheels.yml
index f2d95d961..9664cae36 100644
--- a/.github/workflows/build-wheels.yml
+++ b/.github/workflows/build-wheels.yml
@@ -15,6 +15,10 @@ concurrency:
   group: ${{ github.ref }}-${{ github.workflow }}-${{ github.event_name }}-${{ (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/') || startsWith(github.ref, 'refs/heads/long_lived/')) && github.sha || '' }}
   cancel-in-progress: true
 
+defaults:
+  run:
+    shell: bash
+
 permissions:
   id-token: write
   contents: read
@@ -179,7 +183,7 @@ jobs:
           CFLAGS: "-D__BLST_PORTABLE__"
         run: |
           py -${{ matrix.python.major-dot-minor }} -m venv venv
-          . .\venv\Scripts\Activate.ps1
+          . ./venv/Scripts/activate
           maturin build -i python --release -m wheel/Cargo.toml
 
       - uses: Chia-Network/actions/create-venv@main