diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 8d90b8d..70deb69 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -135,6 +135,7 @@ ruby-2.7-git-2.31-chrome-89-node-12.22-yarn-1.22-docker-19.03.1: *test_custom
 alpine-helm test: *test_build
 
 danger test: *test_build
+danger-ruby-2.6.6 test: *test_build
 gitlab-charts-build-base test: *test_build
 gitlab-charts-build-base-helm-3 test: *test_build
 gitlab-helm3.5-kubectl1.17 test: *test_build
@@ -233,6 +234,7 @@ ruby-2.7-git-2.31-chrome-89-node-12.22-yarn-1.22-docker-19.03.1 push: *build_and
 alpine-helm push: *build_and_deploy
 
 danger push: *build_and_deploy
+danger-ruby-2.6.6 push: *build_and_deploy
 gitlab-charts-build-base push: *build_and_deploy
 gitlab-charts-build-base-helm-3 push: *build_and_deploy
 gitlab-helm3.5-kubectl1.17 push: *build_and_deploy
diff --git a/Dockerfile.danger-ruby-2.6.6 b/Dockerfile.danger-ruby-2.6.6
new file mode 100644
index 0000000..ae74d26
--- /dev/null
+++ b/Dockerfile.danger-ruby-2.6.6
@@ -0,0 +1,31 @@
+FROM ruby:2.6.6-buster
+MAINTAINER GitLab Quality Team
+
+# Danger manipulates git diff output. When a unicode char is present in the diff, it chokes with
+# (Danger::DSLError) [!] Invalid `Dangerfile` file: invalid byte sequence in US-ASCII
+# eg. https://gitlab.com/gitlab-org/gitlab-foss/-/jobs/275286625
+ENV LC_ALL "C.UTF-8"
+
+ENV NODE_VERSION=14.17.2
+ENV YARN_VERSION=1.22.10
+ENV GITLAB_GEM_VERSION=4.17.0
+ENV DANGER_GEM_VERSION=8.3.1
+ENV DANGER_GITLAB_GEM_VERSION=8.0.0
+
+ADD /scripts/ /scripts/
+
+RUN apt-get update \
+    && apt-get install -y git \
+    && /scripts/install-node ${NODE_VERSION} ${YARN_VERSION} \
+    && yarn global add alex@9 \
+    && yarn cache clean \
+    && apt-get autoremove -yq \
+    && apt-get clean -yqq \
+    && rm -rf /var/lib/apt/lists/* \
+    && gem install gitlab --version ${GITLAB_GEM_VERSION} --no-document \
+    && gem install danger --version ${DANGER_GEM_VERSION} --no-document \
+    && gem install danger-gitlab --version ${DANGER_GITLAB_GEM_VERSION} --no-document \
+    && git version \
+    && echo "node version " $(node --version) \
+    && echo "yarn version " $(yarn --version) \
+    && echo "Danger version " $(danger --version)