diff --git a/.travis.yml b/.travis.yml
index 643b227c..9905d30a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,14 +12,14 @@ go:
 before_install:
   - export BUNDLE_GEMFILE=$PWD/Gemfile
   - export TRAVIS_RUBY_VERSION="$(ruby -e 'puts RUBY_VERSION')-travis"
-  - export PATH=$PATH:~/bin:$PWD/dita-ot-3.4/bin/
+  - export PATH=$PATH:~/bin:$PWD/dita-ot-3.6/bin/
 
   # NOTE: This is just for testing purposes -- we want to ensure that
   # GoDownloader is working.
   - curl -sfL https://install.goreleaser.com/github.com/ValeLint/vale.sh | sh -s latest
 
-  - wget https://github.com/dita-ot/dita-ot/releases/download/3.4/dita-ot-3.4.zip
-  - unzip dita-ot-3.4.zip > /dev/null 2>&1
+  - wget https://github.com/dita-ot/dita-ot/releases/download/3.6/dita-ot-3.6.zip
+  - unzip dita-ot-3.6.zip > /dev/null 2>&1
 
   - sudo apt-get install -y xsltproc
   - pip install --user sphinx
diff --git a/Dockerfile b/Dockerfile
index 78df8ba1..7b5dd82c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,10 +8,10 @@ RUN apk add --no-cache --update \
     py3-sphinx \
     asciidoctor
 
-RUN wget https://github.com/dita-ot/dita-ot/releases/download/3.4/dita-ot-3.4.zip
-RUN unzip dita-ot-3.4.zip > /dev/null 2>&1
+RUN wget https://github.com/dita-ot/dita-ot/releases/download/3.6/dita-ot-3.6.zip
+RUN unzip dita-ot-3.6.zip > /dev/null 2>&1
 
 COPY bin/vale /bin
 
-ENV PATH="/bin:/dita-ot-3.4/bin:${PATH}"
+ENV PATH="/bin:/dita-ot-3.6/bin:${PATH}"
 ENTRYPOINT ["/bin/vale"]
diff --git a/Makefile b/Makefile
index 6ef659a2..e4a5c5c8 100755
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ test:
 	cucumber --format progress
 
 docker:
-	GOOS=linux GOARCH=amd64 go build ${LDFLAGS} -o bin/vale
+	GOOS=linux GOARCH=amd64 go build -tags closed ${LDFLAGS} -o bin/vale ./cmd/vale
 	docker login -u jdkato -p ${DOCKER_PASS}
 	docker build -f Dockerfile -t jdkato/vale:latest .
 	docker tag jdkato/vale:latest jdkato/vale:${LAST_TAG}