diff --git a/.github/workflows/documentation-tests.yaml b/.github/workflows/documentation-tests.yaml
index ce35dd442ae..6cf88b01536 100644
--- a/.github/workflows/documentation-tests.yaml
+++ b/.github/workflows/documentation-tests.yaml
@@ -90,7 +90,7 @@ jobs:
         uses: eProsima/eProsima-CI/ubuntu/get_related_branch_from_repo@v0
         with:
           remote_repository: eProsima/Fast-DDS-python
-          fallback_branch: ${{ inputs.fastdds_python_branch || 'main' }}
+          fallback_branch: ${{ inputs.fastdds_python_branch || '3.0.x-devel' }}
 
       - name: Download Fast DDS Python repo
         uses: eProsima/eProsima-CI/external/checkout@v0
@@ -104,7 +104,7 @@ jobs:
         uses: eProsima/eProsima-CI/ubuntu/get_related_branch_from_repo@v0
         with:
           remote_repository: eProsima/Fast-DDS-docs
-          fallback_branch: ${{ inputs.fastdds_docs_branch || 'master' }}
+          fallback_branch: ${{ inputs.fastdds_docs_branch || '3.0.x-devel' }}
 
       - name: Download Fast DDS documentation repo
         uses: eProsima/eProsima-CI/external/checkout@v0
diff --git a/.github/workflows/sanitizers-ci.yml b/.github/workflows/sanitizers-ci.yml
index bb13baecd13..164324756fb 100644
--- a/.github/workflows/sanitizers-ci.yml
+++ b/.github/workflows/sanitizers-ci.yml
@@ -73,5 +73,5 @@ jobs:
       colcon_test_args: ${{ inputs.colcon_test_args || '' }}
       cmake_args: ${{ inputs.cmake_args || '' }}
       ctest_args: ${{ inputs.ctest_args || '' }}
-      fastdds_ref: ${{ inputs.fastdds_ref || github.ref || 'master' }}
-      discovery_server_ref: ${{ inputs.discovery_server_ref || 'master' }}
+      fastdds_ref: ${{ inputs.fastdds_ref || github.ref || '3.0.x-devel' }}
+      discovery_server_ref: ${{ inputs.discovery_server_ref || '3.0.x-devel' }}