diff --git a/Dockerfile b/Dockerfile
index 384c7dd..f2adece 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -5,6 +5,7 @@ ENV CONFIG_FLAGS="--fully-static" DEL_PKGS="libgcc libstdc++" RM_DIRS=/usr/inclu
 
 RUN apk add --no-cache ca-certificates bash curl make gcc g++ python linux-headers paxctl libgcc libstdc++ gnupg && \
   update-ca-certificates && \
+  curl -o- -L https://yarnpkg.com/install.sh | sh \ &&
   gpg --keyserver pool.sks-keyservers.net --recv-keys 9554F04D7259F04124DE6B476D5A82AC7E37093B && \
   gpg --keyserver pool.sks-keyservers.net --recv-keys 94AE36675C464D64BAFA68DD7434390BDBE9B9C5 && \
   gpg --keyserver pool.sks-keyservers.net --recv-keys 0034A06D9D9B0064CE8ADF6BF1747F4AD2306D93 && \
@@ -36,5 +37,6 @@ RUN apk add --no-cache ca-certificates bash curl make gcc g++ python linux-heade
   rm -rf /node-${VERSION}.tar.gz /SHASUMS256.txt.asc /node-${VERSION} ${RM_DIRS} \
     /usr/share/man /tmp/* /var/cache/apk/* /root/.npm /root/.node-gyp /root/.gnupg \
     /usr/lib/node_modules/npm/man /usr/lib/node_modules/npm/doc /usr/lib/node_modules/npm/html
-    
-RUN npm install -g npmci
\ No newline at end of file
+
+ENV PATH /root/.yarn/bin:$PATH
+RUN npm install -g npmci
diff --git a/Dockerfile_npmg b/Dockerfile_npmci
similarity index 62%
rename from Dockerfile_npmg
rename to Dockerfile_npmci
index 7c2b5d4..91f7078 100644
--- a/Dockerfile_npmg
+++ b/Dockerfile_npmci
@@ -1,2 +1 @@
 FROM hosttoday/ht-docker-dbase:latest
-RUN npm install -g npmg
\ No newline at end of file
diff --git a/Dockerfile_npmts b/Dockerfile_npmts
deleted file mode 100644
index fafe611..0000000
--- a/Dockerfile_npmts
+++ /dev/null
@@ -1,3 +0,0 @@
-FROM hosttoday/ht-docker-dbase:latest
-RUN npm install -g npmts
-RUN npm install -g npmdocker
\ No newline at end of file