fix: Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-ALPINE315-LIBRETLS-2428776
- https://snyk.io/vuln/SNYK-ALPINE315-LIBXML2-2421342
- https://snyk.io/vuln/SNYK-ALPINE315-LIBXSLT-2426328
- https://snyk.io/vuln/SNYK-ALPINE315-OPENSSL-2426331
- https://snyk.io/vuln/SNYK-ALPINE315-OPENSSL-2426331

1 files changed, 1 insertions, 1 deletions

diff --git a/Dockerfile b/Dockerfile
index 98dc8cd..b6729ed 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:1.21.5-alpine
+FROM nginx:1.21.6-alpine
 
 ARG VERSION=0.0.0
 ENV VERSION=${VERSION}