diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e7353f26..4fc0a573 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ env:
   nim_version: v2.2.4
   builder_integration_from_vars: true
   builder_integration_linux: runner-node-01-linux-03-eu-hel1
-  builder_integration_macos: macos-14-large
+  builder_integration_macos: macos-14-xlarge
   builder_integration_windows: windows-latest-amd64-32vcpu
 
 concurrency:
@@ -43,10 +43,10 @@ jobs:
             os {linux},   cpu {amd64}, builder {ubuntu-latest},   tests {contract},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
             os {linux},   cpu {amd64}, builder {${{ env.builder_integration_linux }}},   tests {integration}, nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
             os {linux},   cpu {amd64}, builder {ubuntu-latest},   tests {tools},       nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
-            os {macos},   cpu {amd64}, builder {macos-14},       tests {unittest},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
-            os {macos},   cpu {amd64}, builder {macos-14},       tests {contract},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
+            os {macos},   cpu {arm64}, builder {macos-14},       tests {unittest},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
+            os {macos},   cpu {arm64}, builder {macos-14},       tests {contract},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
             os {macos},   cpu {amd64}, builder {${{ env.builder_integration_macos }}},   tests {integration}, nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
-            os {macos},   cpu {amd64}, builder {macos-14},       tests {tools},       nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
+            os {macos},   cpu {arm64}, builder {macos-14},       tests {tools},       nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
             os {windows}, cpu {amd64}, builder {windows-latest}, tests {unittest},    nim_version {${{ env.nim_version }}}, shell {msys2}
             os {windows}, cpu {amd64}, builder {windows-latest}, tests {contract},    nim_version {${{ env.nim_version }}}, shell {msys2}
             os {windows}, cpu {amd64}, builder {${{ env.builder_integration_windows }}}, tests {integration}, nim_version {${{ env.nim_version }}}, shell {msys2}