diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9473615..6a55920 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
               uses: hadolint/hadolint-action@master
               with:
                   dockerfile: extras/docker/Dockerfile
-                  ignore: DL3006 DL3008 DL3033
+                  ignore: DL3006 DL3008 DL3018 DL3033 DL4006
 
     lint-markdown:
         name: Lint Markdown
diff --git a/extras/docker/.hadolint.yaml b/extras/docker/.hadolint.yaml
index 550b171..e216373 100644
--- a/extras/docker/.hadolint.yaml
+++ b/extras/docker/.hadolint.yaml
@@ -1,4 +1,6 @@
 ignored:
   - DL3006
   - DL3008
+  - DL3018
   - DL3033
+  - DL4006
diff --git a/extras/docker/Dockerfile b/extras/docker/Dockerfile
index 55b3b80..8fc0562 100644
--- a/extras/docker/Dockerfile
+++ b/extras/docker/Dockerfile
@@ -41,7 +41,7 @@ USER root
 # Ensure that the chosen package manger is supported by this Dockerfile
 # also ensure that unzip is installed prior to downloading sources
 
-# hadolint ignore=DL3059
+# hadolint ignore=SC2039
 RUN \
 	if [ "${PACKAGE_MANAGER}" = "apt"  ]; then \
 		echo -e "\033[0;34mINFO: Using default \"${PACKAGE_MANAGER}\".\033[0m"; \