diff --git a/Dockerfile b/Dockerfile
index 1fad97e..83ec917 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # bump: golang /GOLANG_VERSION=([\d.]+)/ docker:golang|^1
-ARG GOLANG_VERSION=1.15.2
+ARG GOLANG_VERSION=1.15.3
 # bump: youtube-dl /YDL_VERSION=([\d.]+)/ https://github.com/ytdl-org/youtube-dl.git|/^\d/|sort
 ARG YDL_VERSION=2020.09.20