diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8262647263..985e76b556 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -30,6 +30,12 @@ on:
         required: false
         default: false
         type: boolean
+      container-ref-override:
+        description: |
+          GHCR ref of the container to use.
+        required: false
+        default: 'latest'
+        type: string
 
 env:
   CI: true
@@ -151,9 +157,9 @@ jobs:
         run: |
           cd buildroot
           if [ "${{inputs.force-own-container}}" = "true" ] ; then
-            imgname=$(./opentrons-build-container.sh build)
+            imgname=$(./opentrons-build-container.sh build "${{inputs.container-ref-override}}")
           else
-            imgname=$(./opentrons-build-container.sh pull || ./opentrons-build-container.sh build)
+            imgname=$(./opentrons-build-container.sh pull "${{inputs.container-ref-override}}" || ./opentrons-build-container.sh build "${{inputs.container-ref-override}}")
           fi
           echo "image-name=$imgname" >> $GITHUB_OUTPUT
 
diff --git a/opentrons-build-container.sh b/opentrons-build-container.sh
index d447303ba8..f7d6c2fb64 100755
--- a/opentrons-build-container.sh
+++ b/opentrons-build-container.sh
@@ -32,19 +32,21 @@ EOF
     exit 1
 }
 
+imgref=${2:-latest}
+
 build () {
-    docker build ${filter_arg} -t ${imgname}:${imgtag} -t ${imgname}:latest . 1>&2 || exit 1
+    docker build ${filter_arg} -t ${imgname}:${imgtag} -t ${imgname}:${imgref} . 1>&2 || exit 1
     echo ${imgname}:${imgtag}
 }
 
 push () {
-    docker push ${imgname}:latest 1>&2 || exit 1
-    echo ${imgname}:latest
+    docker push ${imgname}:${imgref} 1>&2 || exit 1
+    echo ${imgname}:${imgref}
 }
 
 pull () {
-    docker pull ${imgname}:latest 1>&2 || exit 1
-    echo ${imgname}:latest
+    docker pull ${imgname}:${imgref} 1>&2 || exit 1
+    echo ${imgname}:${imgref}
 }