diff --git a/docker/coturn/CHANGELOG.md b/docker/coturn/CHANGELOG.md
index 112c2e9..189c512 100644
--- a/docker/coturn/CHANGELOG.md
+++ b/docker/coturn/CHANGELOG.md
@@ -4,11 +4,12 @@ Coturn TURN server Docker image changelog
 
 
 
-## [4.6.2-r12] · unreleased
+## [4.6.2-r12] · 2024-09-09
 [4.6.2-r12]: /../../tree/docker/4.6.2-r12
 
 ### Security updated
 
+- [Alpine Linux] 3.20.3: <https://github.com/docker-library/official-images/commit/94a433c3550a63993b4d7a2081ae87dfe1f7f6bf>
 - [Debian Linux] "bookworm" 20240904 (12.7): <https://github.com/docker-library/official-images/commit/c8fa319f742b43465f60dda8d67cdc8d66eb615d>
 
 
diff --git a/docker/coturn/Makefile b/docker/coturn/Makefile
index d1632ad..73216c1 100644
--- a/docker/coturn/Makefile
+++ b/docker/coturn/Makefile
@@ -34,7 +34,7 @@ ALPINE_VER := alpine$(strip $(shell grep -m1 'alpine_ver=' alpine/Dockerfile \
 DEBIAN_VER := $(strip $(shell grep -m1 'debian_ver=' debian/Dockerfile \
                               | cut -d '=' -f2))
 
-BUILD_REV ?= 11
+BUILD_REV ?= 12
 
 NAME := coturn
 OWNER := $(or $(GITHUB_REPOSITORY_OWNER),coturn)
diff --git a/docker/coturn/README.md b/docker/coturn/README.md
index b74b303..f5db549 100644
--- a/docker/coturn/README.md
+++ b/docker/coturn/README.md
@@ -15,8 +15,8 @@ Coturn TURN server Docker image
 
 ## Supported tags and respective `Dockerfile` links
 
-- [`4.6.2-r11`, `4.6.2-r10-debian`, `4.6.2`, `4.6.2-debian`, `4.6.2-bookworm`, `4.6`, `4.6-debian`, `4.6-bookworm`, `4`, `4-debian`, `4-bookworm`, `debian`, `bookworm`, `latest`][d1]
-- [`4.6.2-r11-alpine`, `4.6.2-alpine`, `4.6.2-alpine3.20`, `4.6-alpine`, `4.6-alpine3.20`, `4-alpine`, `4-alpine3.20`, `alpine`, `alpine3.20`][d2]
+- [`4.6.2-r12`, `4.6.2-r12-debian`, `4.6.2`, `4.6.2-debian`, `4.6.2-bookworm`, `4.6`, `4.6-debian`, `4.6-bookworm`, `4`, `4-debian`, `4-bookworm`, `debian`, `bookworm`, `latest`][d1]
+- [`4.6.2-r12-alpine`, `4.6.2-alpine`, `4.6.2-alpine3.20`, `4.6-alpine`, `4.6-alpine3.20`, `4-alpine`, `4-alpine3.20`, `alpine`, `alpine3.20`][d2]