diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c6e50daf..8b72062a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ env:
 jobs:
   e2e-harness:
     name: e2e-harness
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
       - name: Checkout
@@ -47,7 +47,7 @@ jobs:
 
   fmt:
     name: fmt
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
       - name: Checkout
@@ -63,7 +63,7 @@ jobs:
 
   clippy:
     name: clippy
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 45
     steps:
       - name: Checkout
@@ -84,7 +84,7 @@ jobs:
 
   typos:
     name: typos
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
       - name: Checkout
@@ -103,7 +103,7 @@ jobs:
 
   test:
     name: test
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
       - name: Checkout
@@ -126,7 +126,7 @@ jobs:
 
   dependency-audit:
     name: dependency-audit
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
       - name: Checkout
diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 14891c18..d86e1aa7 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -61,7 +61,7 @@ jobs:
     # without this a broken base image or artifact-copy path reaches master and
     # first surfaces in the publish job.
     if: github.event_name == 'pull_request'
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 120
     strategy:
       fail-fast: false
@@ -114,9 +114,9 @@ jobs:
           - name: catalyst-p2p-bootnode
             dockerfile: tools/p2p_boot_node/Dockerfile
         platform:
-          - runner: arc-runner-set
+          - runner: ubuntu-latest
             id: linux/amd64
-          - runner: arc-runner-set-arm64
+          - runner: ubuntu-24.04-arm
             id: linux/arm64
     steps:
       - name: Prepare platform name
@@ -189,7 +189,7 @@ jobs:
     name: publish manifest (${{ matrix.image }})
     if: github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/tags/v')
     needs: publish
-    runs-on: [arc-runner-set]
+    runs-on: ubuntu-latest
     timeout-minutes: 15
     permissions:
       contents: read