diff --git a/.github/workflows/vulnscan.yml b/.github/workflows/vulnscan.yml
index 62675df..12e5088 100644
--- a/.github/workflows/vulnscan.yml
+++ b/.github/workflows/vulnscan.yml
@@ -34,7 +34,7 @@ jobs:
           for image in $ALL_IMAGES; do
             if [[ "$image" = cmur2/dyndnsd:v$major_version.* ]]; then
               echo -e "\nScanning newest patch release $image of major v$major_version...\n"
-              if ! trivy image --skip-update --exit-code 1 "$image"; then
+              if ! trivy image --skip-update --exit-code 1 --skip-dirs '/usr/lib/ruby/gems/2.7.0/gems/jaeger-client-0.10.0/crossdock' "$image"; then
                 EXIT_CODE=1
               fi
               break