diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9e3924ce..ceed2a3e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
         uses: fabiocaccamo/create-matrix-action@v5
         with:
           matrix: |
-            os {linux},   cpu {amd64}, builder {ubuntu-latest-amd64-32vcpu},   tests {integration}, nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
+            os {linux},   cpu {amd64}, builder {runner-node-01-linux-01-eu-hel1},   tests {integration}, nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
 
             # os {linux},   cpu {amd64}, builder {ubuntu-latest},  tests {unittest},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}
             # os {linux},   cpu {amd64}, builder {ubuntu-latest},  tests {contract},    nim_version {${{ env.nim_version }}}, shell {bash --noprofile --norc -e -o pipefail}