diff --git a/.github/jobs/set_job_controls.sh b/.github/jobs/set_job_controls.sh
index 76a123d18b..7c0219944b 100755
--- a/.github/jobs/set_job_controls.sh
+++ b/.github/jobs/set_job_controls.sh
@@ -6,7 +6,7 @@ run_unit_tests=false
 run_diff=false
 run_update_truth=false
 met_base_repo=met-base
-met_base_tag=v2.0_debian10
+met_base_tag=v2.1_beta4
 input_data_version=develop
 truth_data_version=develop
 
diff --git a/.github/workflows/build_docker_and_trigger_metplus.yml b/.github/workflows/build_docker_and_trigger_metplus.yml
index 89e5e14f67..8cb619808f 100644
--- a/.github/workflows/build_docker_and_trigger_metplus.yml
+++ b/.github/workflows/build_docker_and_trigger_metplus.yml
@@ -29,7 +29,7 @@ jobs:
         env:
           SOURCE_BRANCH: ${{ steps.get_branch_name.outputs.branch_name }}-lite
           MET_BASE_REPO: met-base
-          MET_BASE_TAG: v2.0_debian10
+          MET_BASE_TAG: v2.1_beta4
 
       - name: Push Docker Image
         run: .github/jobs/push_docker_image.sh
diff --git a/internal/scripts/docker/Dockerfile.copy b/internal/scripts/docker/Dockerfile.copy
index d4456f87ff..f79aca66c2 100644
--- a/internal/scripts/docker/Dockerfile.copy
+++ b/internal/scripts/docker/Dockerfile.copy
@@ -1,5 +1,5 @@
 ARG MET_BASE_REPO=met-base-unit-test
-ARG MET_BASE_TAG=v2.0_debian10
+ARG MET_BASE_TAG=v2.1_beta4
 
 FROM dtcenter/${MET_BASE_REPO}:${MET_BASE_TAG}
 MAINTAINER John Halley Gotway <johnhg@ucar.edu>