diff --git a/Dockerfile b/Dockerfile
index c28b12c..5296c17 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,12 +1,12 @@
-FROM ruby:2.5.3-alpine3.7
+FROM ruby:2.6.3-alpine3.10
 
 ARG MIDDLEMAN_VERSION
 
 RUN apk --no-cache add \
-  nodejs=8.9.3-r1 \
-  ruby-dev=2.4.5-r0 \
-  build-base=0.5-r0 \
-  git=2.15.3-r0
+  nodejs=10.16.3-r0 \
+  ruby-dev=2.5.5-r0 \
+  build-base=0.5-r1 \
+  git=2.22.0-r0
 
 RUN gem install --no-document \
     middleman --version $MIDDLEMAN_VERSION