diff --git a/Dockerfile.ci b/Dockerfile.ci
index b2f3032..75abffa 100644
--- a/Dockerfile.ci
+++ b/Dockerfile.ci
@@ -1,7 +1,7 @@
 # This Dockerfile is intended to be used in the CI environment and depends on
 # an existing binary built outside Docker.
 
-FROM alpine:3.12.0
+FROM alpine:3.14.0
 
 RUN apk add --no-cache ca-certificates
 ADD video-captions-api /bin/captions-api