diff --git a/.github/workflows/release-series-builds.yml b/.github/workflows/release-series-builds.yml
index acdd47b..e01802f 100644
--- a/.github/workflows/release-series-builds.yml
+++ b/.github/workflows/release-series-builds.yml
@@ -22,8 +22,6 @@ jobs:
       matrix:
         repo: ['development', 'testing', 'release']
         osg_series:
-          - name: '24'
-            os: 'el9'
           - name: '25'
             os: 'el9'
           - name: '26'
@@ -66,8 +64,6 @@ jobs:
         image: [atlas-xcache, cms-xcache]
         repo: ['development', 'testing', 'release']
         osg_series:
-          - name: '24'
-            os: 'el9'
           - name: '25'
             os: 'el9'
           - name: '26'
@@ -122,9 +118,6 @@ jobs:
         image: [atlas-xcache, cms-xcache, xcache]
         repo: ['development', 'testing', 'release']
         osg_series:
-          - name: '24'
-            os: 'el9'
-            organization: 'osg-htc'
           - name: '25'
             os: 'el9'
             organization: 'osg-htc'