diff --git a/Dockerfile b/Dockerfile
index b089804..ccd2f50 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15.12-buster@sha256:c86db47bc4fe3d596a11f5c02fb198a096863a1803877a3c57009f3133e8f16c as build
+FROM golang:1.16.4-buster@sha256:cdc0ce37b610ff73209377bf3a8ba9b3710bf853876863d4b3b6c1f778edade5 as build
 
 # renovate: datasource=github-tags depName=strukturag/nextcloud-spreed-signaling versioning=semver
 ENV SPREED_SIGNALING_VERSION v0.2.0