diff --git a/0.21/Dockerfile b/0.21/Dockerfile
index cf1e4e8..f650e3f 100644
--- a/0.21/Dockerfile
+++ b/0.21/Dockerfile
@@ -31,7 +31,7 @@ RUN curl -o /usr/local/bin/gosu -fSL https://github.com/tianon/gosu/releases/dow
   && chmod +x /usr/local/bin/gosu
 
 ARG TARGETPLATFORM
-ENV LITECOIN_VERSION=0.21.2.2
+ENV LITECOIN_VERSION=0.21.5.6
 ENV LITECOIN_DATA=/home/litecoin/.litecoin
 
 RUN set -ex \
diff --git a/README.md b/README.md
index aa5a910..86e850f 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ A Litecoin Core docker image.
 
 ## Tags
 
-- `0.21.2.2`, `0.21`, `latest` ([0.21/Dockerfile](https://github.com/uphold/docker-litecoin-core/blob/master/0.21/Dockerfile))
+- `0.21.5.6`, `0.21`, `latest` ([0.21/Dockerfile](https://github.com/uphold/docker-litecoin-core/blob/master/0.21/Dockerfile))
 - `0.18.1`, `0.18` ([0.18/Dockerfile](https://github.com/uphold/docker-litecoin-core/blob/master/0.18/Dockerfile))
 - `0.17.1`, `0.17` ([0.17/Dockerfile](https://github.com/uphold/docker-litecoin-core/blob/master/0.17/Dockerfile))
 - `0.16.3`, `0.16` ([0.16/Dockerfile](https://github.com/uphold/docker-litecoin-core/blob/master/0.16/Dockerfile))