diff --git a/DevDockerfile b/DevDockerfile
index ff00d4ff..714a8f3a 100644
--- a/DevDockerfile
+++ b/DevDockerfile
@@ -13,7 +13,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends --no-install-su
   curl -L https://github.com/rbenv/ruby-build/archive/v20180822.tar.gz | tar -zxvf - -C /tmp/ && \
   cd /tmp/ruby-build-* && ./install.sh && cd / && \
   ruby-build -v 2.5.1 /usr/local && rm -rfv /tmp/ruby-build-* && \
-  gem install bundler --no-rdoc --no-ri
+  gem install bundler -v 2.3.26 --no-document
 
 # Scancode
 ARG SCANCODE_VERSION="30.1.0"
@@ -31,10 +31,10 @@ ENV SCANCODE_HOME=/usr/local/bin
 # the current RubyGem is 2.5.1. However, after upgrading RubyGem to 3.1.2, licensee:9.12.0 starts
 # to have hard time to find license in LICENSE file, like component npm/npmjs/-/caniuse-lite/1.0.30001344.
 # So we pin to the previous version of nokogiri and faraday.
-RUN gem install nokogiri:1.12.5 --no-rdoc --no-ri && \
-  gem install faraday:1.10.0 --no-rdoc --no-ri && \
-  gem install public_suffix:4.0.7 --no-rdoc --no-ri && \
-  gem install licensee:9.12.0 --no-rdoc --no-ri
+RUN gem install nokogiri:1.12.5 --no-document && \
+  gem install faraday:1.10.0 --no-document && \
+  gem install public_suffix:4.0.7 --no-document && \
+  gem install licensee:9.12.0 --no-document
 
 # REUSE
 RUN pip3 install setuptools
diff --git a/Dockerfile b/Dockerfile
index e834d1c8..f76cc23d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends --no-install-su
   curl -L https://github.com/rbenv/ruby-build/archive/v20180822.tar.gz | tar -zxvf - -C /tmp/ && \
   cd /tmp/ruby-build-* && ./install.sh && cd / && \
   ruby-build -v 2.5.1 /usr/local && rm -rfv /tmp/ruby-build-* && \
-  gem install bundler --no-rdoc --no-ri
+  gem install bundler -v 2.3.26 --no-document
 
 # Scancode
 ARG SCANCODE_VERSION="30.1.0"
@@ -37,10 +37,10 @@ ENV SCANCODE_HOME=/usr/local/bin
 # the current RubyGem is 2.5.1. However, after upgrading RubyGem to 3.1.2, licensee:9.12.0 starts
 # to have hard time to find license in LICENSE file, like component npm/npmjs/-/caniuse-lite/1.0.30001344.
 # So we pin to the previous version of nokogiri and faraday.
-RUN gem install nokogiri:1.12.5 --no-rdoc --no-ri && \
-  gem install faraday:1.10.0 --no-rdoc --no-ri && \
-  gem install public_suffix:4.0.7 --no-rdoc --no-ri && \
-  gem install licensee:9.12.0 --no-rdoc --no-ri
+RUN gem install nokogiri:1.12.5 --no-document && \
+  gem install faraday:1.10.0 --no-document && \
+  gem install public_suffix:4.0.7 --no-document && \
+  gem install licensee:9.12.0 --no-document
 
 # REUSE
 RUN pip3 install setuptools