diff --git a/README.md b/README.md
index 4dcca36d..1af3a4a0 100644
--- a/README.md
+++ b/README.md
@@ -95,7 +95,7 @@ repos:
 
 ## Docker
 
-A Docker image is availlable at `ghcr.io/oxipng/oxipng` for `linux/amd64` and `linux/arm64`.
+A Docker image is availlable at [`ghcr.io/oxipng/oxipng`](https://github.com/oxipng/oxipng/pkgs/container/oxipng) for `linux/amd64` and `linux/arm64`.
 
 You can use it the following way:
 
@@ -103,6 +103,8 @@ You can use it the following way:
 docker run --rm -v $(pwd):/work ghcr.io/oxipng/oxipng -o 4 /work/file.png
 ```
 
+Some older images are also available at [`ghcr.io/shssoichiro/oxipng`](https://github.com/users/shssoichiro/packages/container/package/oxipng).
+
 ## Library Usage
 
 Although originally intended to be used as an executable, Oxipng can also be used as a library in