diff --git a/.woodpecker/build_docker.yml b/.woodpecker/build_docker.yml
index 86e580a..b39268c 100644
--- a/.woodpecker/build_docker.yml
+++ b/.woodpecker/build_docker.yml
@@ -30,6 +30,7 @@ pipeline:
       dockerfile: docker/Dockerfile.amd64
       auto_tag: true
       auto_tag_suffix: linux-amd64
+      build_args: BUILD_DATE="$(date +%Y-%m-%d_%H:%M)"
 
   # build docker image for arm64
   dryrun-build-arm64:
@@ -44,5 +45,6 @@ pipeline:
       platforms: linux/arm64
       dockerfile: docker/Dockerfile.arm64
       auto_tag: true
-      auto_tag_suffix: linux-arm64
+      auto_tag_suffix: linux-arm64#
+      build_args: BUILD_DATE="$(date +%Y-%m-%d_%H:%M)"
 
diff --git a/.woodpecker/publish_docker.yml b/.woodpecker/publish_docker.yml
index 364bd83..9e71224 100644
--- a/.woodpecker/publish_docker.yml
+++ b/.woodpecker/publish_docker.yml
@@ -29,6 +29,7 @@ pipeline:
       dockerfile: docker/Dockerfile.amd64
       auto_tag: true
       auto_tag_suffix: linux-amd64
+      build_args: BUILD_DATE="$(date +%Y-%m-%d_%H:%M)"
       username:
         from_secret: cr-dhub-username
       password:
@@ -47,6 +48,7 @@ pipeline:
       dockerfile: docker/Dockerfile.arm64
       auto_tag: true
       auto_tag_suffix: linux-arm64
+      build_args: BUILD_DATE="$(date +%Y-%m-%d_%H:%M)"
       username:
         from_secret: cr-dhub-username
       password:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7901524..fc45cfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,16 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - Add support for more sites
 
+## [2.1.5] - 2022-06-17
+
+### Fixed
+
+- Image names now have a suffix, as some comic readers have problems with no suffix
+
+### Added
+
+- `--format` section in the README
+
 ## [2.1.4] - 2022-05-29
 
 ### Fixed
diff --git a/docker/Dockerfile.amd64 b/docker/Dockerfile.amd64
index 23068c9..2cf4d3f 100644
--- a/docker/Dockerfile.amd64
+++ b/docker/Dockerfile.amd64
@@ -1,13 +1,11 @@
 FROM cr.44net.ch/baseimages/debian-s6:1.3.5
 
 # set version label
+ENV MDLP_VERSION=2.1.5
 ARG BUILD_DATE
-ARG VERSION
-LABEL build_version="Version:- ${VERSION} Build-date:- ${BUILD_DATE}"
+LABEL build_version="Version: ${MDLP_VERSION} - Build-date: ${BUILD_DATE}"
 LABEL maintainer="Ivan Schaller"
 
-# manga-dlp version
-ENV MDLP_VERSION=2.1.4
 
 # install packages
 RUN \
diff --git a/docker/Dockerfile.arm64 b/docker/Dockerfile.arm64
index a1c5510..9f92aeb 100644
--- a/docker/Dockerfile.arm64
+++ b/docker/Dockerfile.arm64
@@ -1,13 +1,11 @@
 FROM cr.44net.ch/baseimages/debian-s6:1.3.5
 
 # set version label
+ENV MDLP_VERSION=2.1.5
 ARG BUILD_DATE
-ARG VERSION
-LABEL build_version="Version:- ${VERSION} Build-date:- ${BUILD_DATE}"
+LABEL build_version="Version: ${MDLP_VERSION} - Build-date: ${BUILD_DATE}"
 LABEL maintainer="Ivan Schaller"
 
-# manga-dlp version
-ENV MDLP_VERSION=2.1.4
 
 # install packages
 RUN \
diff --git a/manga-dlp.py b/manga-dlp.py
index 75dfe24..1251e84 100644
--- a/manga-dlp.py
+++ b/manga-dlp.py
@@ -3,7 +3,7 @@ import sys
 
 from mangadlp.input import get_args
 
-mangadlp_version = "2.1.4"
+mangadlp_version = "2.1.5"
 
 
 def get_input():
diff --git a/mangadlp/input.py b/mangadlp/input.py
index 4ae6871..d9096fe 100644
--- a/mangadlp/input.py
+++ b/mangadlp/input.py
@@ -4,7 +4,7 @@ from pathlib import Path
 
 import mangadlp.app as app
 
-mangadlp_version = "2.1.4"
+mangadlp_version = "2.1.5"
 
 
 def check_args(args):
diff --git a/setup.py b/setup.py
index 151d055..f2e591c 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@ long_description = readme.read_text()
 
 setuptools.setup(
     name="manga-dlp",
-    version="2.1.4",
+    version="2.1.5",
     author="Ivan Schaller",
     author_email="ivan@schaller.sh",
     description="A cli manga downloader",