diff --git a/.github/workflows/ci-build-ts.yml b/.github/workflows/ci-build-ts.yml
index f05873033c..29d986f5ce 100644
--- a/.github/workflows/ci-build-ts.yml
+++ b/.github/workflows/ci-build-ts.yml
@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: custom-runner-linux
+    runs-on: ubuntu-20.04-16-core
     steps:
     - uses: actions/checkout@v2
     - name: Install rsync
diff --git a/.github/workflows/ci-lint-typescript.yml b/.github/workflows/ci-lint-typescript.yml
index 5b2f662756..c13443aec1 100644
--- a/.github/workflows/ci-lint-typescript.yml
+++ b/.github/workflows/ci-lint-typescript.yml
@@ -22,7 +22,7 @@ on:
 
 jobs:
   build:
-    runs-on: custom-runner-linux
+    runs-on: ubuntu-20.04-16-core
     steps:
       - uses: actions/checkout@v2
       - uses: rlespinasse/github-slug-action@v3.x
diff --git a/.github/workflows/publish-nym-connect-macos.yml b/.github/workflows/publish-nym-connect-macos.yml
index e5060b7aad..4a17f090e0 100644
--- a/.github/workflows/publish-nym-connect-macos.yml
+++ b/.github/workflows/publish-nym-connect-macos.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform: [macos-latest]
+        platform: [macos-12-large]
     runs-on: ${{ matrix.platform }}
 
     outputs:
diff --git a/.github/workflows/publish-nym-wallet-macos.yml b/.github/workflows/publish-nym-wallet-macos.yml
index 497f367047..63cb7426a7 100644
--- a/.github/workflows/publish-nym-wallet-macos.yml
+++ b/.github/workflows/publish-nym-wallet-macos.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform: [macos-latest]
+        platform: [macos-12-large]
     runs-on: ${{ matrix.platform }}
 
     outputs:
diff --git a/.github/workflows/publish-sdk-npm.yml b/.github/workflows/publish-sdk-npm.yml
index e5164d6dec..1cc937827b 100644
--- a/.github/workflows/publish-sdk-npm.yml
+++ b/.github/workflows/publish-sdk-npm.yml
@@ -4,7 +4,7 @@ on:
 
 jobs:
   publish:
-    runs-on: [custom-runner-linux]
+    runs-on: ubuntu-20.04-16-core
     steps:
       - uses: actions/checkout@v2