diff --git a/Dockerfile b/Dockerfile
index a4d3f45..0a2544c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15.14-buster@sha256:943266b185daf5a96ce5cdda06529ad88ffb8fbfaefaf49b3bb4df3830d76e2e as build
+FROM golang:1.16.6-buster@sha256:777d13e40bc15456dceac9b37f926bd7b4c237645da9ff8e3c94d7a4916a909b as build
 
 # renovate: datasource=github-tags depName=strukturag/nextcloud-spreed-signaling versioning=semver
 ENV SPREED_SIGNALING_VERSION v0.3.0