diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a574e7c5..1f26edd0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,25 +6,27 @@ on:
       - 'main'
 
 env:
-  BUILDER_VERSION: v0.9.52
+  BUILDER_VERSION: v0.9.73
   BUILDER_SOURCE: releases
   BUILDER_HOST: https://d19elf31gohf1l.cloudfront.net
   PACKAGE_NAME: aws-crt-swift
   RUN: ${{ github.run_id }}-${{ github.run_number }}
-  AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
-  AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
-  AWS_REGION: us-east-1
+  CRT_CI_ROLE: ${{ secrets.CRT_CI_ROLE_ARN }}
+  AWS_DEFAULT_REGION: us-east-1
+
+permissions:
+  id-token: write # This is required for requesting the JWT
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
       - name: GitHub Action for SwiftLint
         uses: norio-nomura/action-swiftlint@3.2.1
 
   linux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
@@ -34,10 +36,15 @@ jobs:
           # issue to fix centos opened against apple here: https://github.com/apple/swift-docker/issues/258
           # - centos-x64
     steps:
-      - name: Build ${{ env.PACKAGE_NAME }}
-        run: |
-          aws s3 cp --debug s3://aws-crt-test-stuff/ci/${{ env.BUILDER_VERSION }}/linux-container-ci.sh ./linux-container-ci.sh && chmod a+x ./linux-container-ci.sh
-          ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-swift-5-${{ matrix.image }} build -p ${{ env.PACKAGE_NAME }}
+    - uses: aws-actions/configure-aws-credentials@v4
+      with:
+        role-to-assume: ${{ env.CRT_CI_ROLE }}
+        aws-region: ${{ env.AWS_DEFAULT_REGION }} 
+    - name: Build ${{ env.PACKAGE_NAME }}
+      run: |
+        aws s3 cp --debug s3://aws-crt-test-stuff/ci/${{ env.BUILDER_VERSION }}/linux-container-ci.sh ./linux-container-ci.sh && chmod a+x ./linux-container-ci.sh
+        ./linux-container-ci.sh ${{ env.BUILDER_VERSION }} aws-crt-swift-5-${{ matrix.image }} build -p ${{ env.PACKAGE_NAME }}
+  
   macos:
     runs-on: ${{ matrix.runner }}
     env:
@@ -54,11 +61,15 @@ jobs:
           - macos-13-xlarge
           - macos-14-large #x64
     steps:
-      - name: Build ${{ env.PACKAGE_NAME }} + consumers
-        run: |
-          python3 -c "from urllib.request import urlretrieve; urlretrieve('${{ env.BUILDER_HOST }}/${{ env.BUILDER_SOURCE }}/${{ env.BUILDER_VERSION }}/builder.pyz?run=${{ env.RUN }}', 'builder')"
-          chmod a+x builder
-          ./builder build -p ${{ env.PACKAGE_NAME }}
+    - uses: aws-actions/configure-aws-credentials@v4
+      with:
+        role-to-assume: ${{ env.CRT_CI_ROLE }}
+        aws-region: ${{ env.AWS_DEFAULT_REGION }} 
+    - name: Build ${{ env.PACKAGE_NAME }} + consumers
+      run: |
+        python3 -c "from urllib.request import urlretrieve; urlretrieve('${{ env.BUILDER_HOST }}/${{ env.BUILDER_SOURCE }}/${{ env.BUILDER_VERSION }}/builder.pyz?run=${{ env.RUN }}', 'builder')"
+        chmod a+x builder
+        ./builder build -p ${{ env.PACKAGE_NAME }}
 
   devices:
     runs-on: ${{ matrix.runner }}
@@ -111,21 +122,29 @@ jobs:
           - target: { os: watchos, destination: 'watchOS Simulator,OS=9.1,name=Apple Watch Series 5 (40mm)'}
             xcode: Xcode_15.2
     steps:
-      - name: Build ${{ env.PACKAGE_NAME }} + consumers
-        run: |
-          python3 -c "from urllib.request import urlretrieve; urlretrieve('${{ env.BUILDER_HOST }}/${{ env.BUILDER_SOURCE }}/${{ env.BUILDER_VERSION }}/builder.pyz?run=${{ env.RUN }}', 'builder')"
-          chmod a+x builder
-          ./builder build -p ${{ env.PACKAGE_NAME }} --target=${{ matrix.target.os }}-armv8
+    - uses: aws-actions/configure-aws-credentials@v4
+      with:
+        role-to-assume: ${{ env.CRT_CI_ROLE }}
+        aws-region: ${{ env.AWS_DEFAULT_REGION }} 
+    - name: Build ${{ env.PACKAGE_NAME }} + consumers
+      run: |
+        python3 -c "from urllib.request import urlretrieve; urlretrieve('${{ env.BUILDER_HOST }}/${{ env.BUILDER_SOURCE }}/${{ env.BUILDER_VERSION }}/builder.pyz?run=${{ env.RUN }}', 'builder')"
+        chmod a+x builder
+        ./builder build -p ${{ env.PACKAGE_NAME }} --target=${{ matrix.target.os }}-armv8
 
   check-submodules:
-    runs-on: ubuntu-22.04 # latest
+    runs-on: ubuntu-24.04 # latest
     steps:
-      - name: Checkout Source
-        uses: actions/checkout@v4
-        with:
-          submodules: true
-          fetch-depth: 0
-      - name: Check Submodules
-        # note: using "@main" because "@${{env.BUILDER_VERSION}}" doesn't work
-        # https://github.com/actions/runner/issues/480
-        uses: awslabs/aws-crt-builder/.github/actions/check-submodules@main
+    - uses: aws-actions/configure-aws-credentials@v4
+      with:
+        role-to-assume: ${{ env.CRT_CI_ROLE }}
+        aws-region: ${{ env.AWS_DEFAULT_REGION }} 
+    - name: Checkout Source
+      uses: actions/checkout@v4
+      with:
+        submodules: true
+        fetch-depth: 0
+    - name: Check Submodules
+      # note: using "@main" because "@${{env.BUILDER_VERSION}}" doesn't work
+      # https://github.com/actions/runner/issues/480
+      uses: awslabs/aws-crt-builder/.github/actions/check-submodules@main