diff --git a/Dockerfile.development b/Dockerfile.development
index b62f07c..8839bae 100644
--- a/Dockerfile.development
+++ b/Dockerfile.development
@@ -1,4 +1,4 @@
-FROM alpine:3.5
+FROM alpine:3.14
 
 ENV BUILD_PKGS="build-base ruby-dev libffi-dev libxml2-dev mariadb-dev" \
     RUNTIME_PKGS="ruby ruby-json ruby-bigdecimal ruby-irb ruby-bundler ca-certificates mariadb-client" \