diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65594926..8d61f9dd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,6 @@ jobs:
       matrix:
         os:
         - ubuntu-latest
-        - ubuntu-24.04
         - ubuntu-20.04
         ruby:
         - 3.3
@@ -30,9 +29,6 @@ jobs:
         - 2.6
         include:
         - { os: ubuntu-latest , ruby: debug }
-        exclude:
-        - { os: ubuntu-24.04 , ruby: 2.7 }
-        - { os: ubuntu-24.04 , ruby: 2.6 }
 
     steps:
     - uses: actions/checkout@v2
diff --git a/.github/workflows/pycall.yml b/.github/workflows/pycall.yml
index 67bcd893..6d8b25e3 100644
--- a/.github/workflows/pycall.yml
+++ b/.github/workflows/pycall.yml
@@ -20,7 +20,6 @@ jobs:
       matrix:
         os:
         - ubuntu-latest
-        - ubuntu-24.04
         - ubuntu-20.04
         ruby:
         - 3.3