diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index 0260cb6a..985b2ef9 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -11,7 +11,7 @@ defaults:
 
 jobs:
     prepare-release:
-        runs-on: ubuntu-latest-8core
+        runs-on: ubuntu-latest-4core
         steps:
             - name: Checkout
               uses: actions/checkout@v4
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index 782cc634..89a9592a 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -10,7 +10,7 @@ defaults:
 
 jobs:
     publish-release:
-        runs-on: ubuntu-latest-8core
+        runs-on: ubuntu-latest-4core
         permissions:
             id-token: write
             contents: read
diff --git a/.github/workflows/publish-snapshot.yml b/.github/workflows/publish-snapshot.yml
index 62cc4f2f..e9fe6b8a 100644
--- a/.github/workflows/publish-snapshot.yml
+++ b/.github/workflows/publish-snapshot.yml
@@ -14,7 +14,7 @@ defaults:
 
 jobs:
     publish-snapshot:
-        runs-on: ubuntu-latest-8core
+        runs-on: ubuntu-latest-4core
         permissions:
             contents: read
             id-token: write
diff --git a/.github/workflows/publish-unstable.yml b/.github/workflows/publish-unstable.yml
index 6eeae7fb..a9becc61 100644
--- a/.github/workflows/publish-unstable.yml
+++ b/.github/workflows/publish-unstable.yml
@@ -12,7 +12,7 @@ on:
 
 jobs:
     publish-unstable:
-        runs-on: ubuntu-latest-8core
+        runs-on: ubuntu-latest-4core
         permissions:
             id-token: write
             contents: read
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2e732efc..0ce752de 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -18,7 +18,7 @@ on:
 
 jobs:
     BuildAndTest:
-        runs-on: ubuntu-latest-8core
+        runs-on: ubuntu-latest-4core
         env:
             MINICONDA_PYTHON_VERSION: py38
             MINICONDA_VERSION: 4.11.0