diff --git a/scripts/gitlab/build_and_test.sh b/scripts/gitlab/build_and_test.sh
index 314c587dfd..58d04163c9 100755
--- a/scripts/gitlab/build_and_test.sh
+++ b/scripts/gitlab/build_and_test.sh
@@ -49,6 +49,8 @@ spack_debug=${SPACK_DEBUG:-false}
 debug_mode=${DEBUG_MODE:-false}
 push_to_registry=${PUSH_TO_REGISTRY:-true}
 
+camp_reference=${CAMP_REFERENCE:-""}
+
 # Map CPU core allocations
 declare -A core_counts=(["dane"]=28 ["matrix"]=28 ["corona"]=32 ["rzansel"]=48 ["tioga"]=32 ["tuolumne"]=48)
 
@@ -275,6 +277,15 @@ then
         exit 1
     fi
 
+    extra_deps=""
+
+    if [[ -n ${camp_reference} ]]
+    then
+        extra_deps="${extra_deps} ^camp@git.${camp_reference}=main"
+    fi
+
+    [[ -n ${extra_deps} ]] && spec="${spec} ${extra_deps}"
+
     prefix_opt="--prefix=${prefix}"
 
     # We force Spack to put all generated files (cache and configuration of