diff --git a/.github/workflows/ciaox11.yml b/.github/workflows/ciaox11.yml
index 108015f..bf6e276 100644
--- a/.github/workflows/ciaox11.yml
+++ b/.github/workflows/ciaox11.yml
@@ -34,8 +34,8 @@ env:
   DANCEX11_ROOT: ${{ github.workspace }}/dancex11
   DDS_ROOT: ${{ github.workspace }}/OpenDDS
   X11_BRANCH: master
-  ACETAOMPC_BRANCH: Latest_ACE7TAO3_Micro
-  OPENDDS_BRANCH: latest-release
+  ACETAOMPC_BRANCH: ACE+TAO-7_1_2
+  OPENDDS_BRANCH: DDS-3.26
 
 jobs:
   build:
diff --git a/.github/workflows/r2corba.yml b/.github/workflows/r2corba.yml
index ae3565b..76fcac4 100644
--- a/.github/workflows/r2corba.yml
+++ b/.github/workflows/r2corba.yml
@@ -71,13 +71,13 @@ jobs:
       with:
         repository: DOCGroup/ACE_TAO
         path: ${{ env.DOC_ROOT }}
-        ref: Latest_ACE7TAO3_Micro
+        ref: ACE+TAO-7_1_2
     - name: checkout MPC
       uses: actions/checkout@v4
       with:
         repository: DOCGroup/MPC
         path: ${{ env.MPC_ROOT }}
-        ref: Latest_ACE7TAO3_Micro
+        ref: ACE+TAO-7_1_2
     - name: checkout r2corba
       uses: actions/checkout@v4
       with:
diff --git a/.github/workflows/taox11.yml b/.github/workflows/taox11.yml
index a10c5b1..0a2fba8 100644
--- a/.github/workflows/taox11.yml
+++ b/.github/workflows/taox11.yml
@@ -31,7 +31,7 @@ env:
   RIDL_ROOT: ${{ github.workspace }}
   TAOX11_ROOT: ${{ github.workspace }}/taox11
   X11_BRANCH: master
-  ACETAOMPC_BRANCH: Latest_ACE7TAO3_Micro
+  ACETAOMPC_BRANCH: ACE+TAO-7_1_2
 
 jobs:
   linux: