diff --git a/8.10.3/Dockerfile b/8.10.3/Dockerfile
new file mode 100644
index 000000000..b728f77ba
--- /dev/null
+++ b/8.10.3/Dockerfile
@@ -0,0 +1,17 @@
+# Logstash 8.10.3
+
+# This image re-bundles the Docker image from the upstream provider, Elastic.
+FROM docker.elastic.co/logstash/logstash:8.10.3@sha256:8ab8549b1cd8530928372f6605c6c5ec9bf9af26d8953fef56c1a0b50df9a96b
+# Supported Bashbrew Architectures: amd64 arm64v8
+
+# The upstream image was built by:
+#   https://github.com/elastic/dockerfiles/tree/v8.10.3/logstash
+
+# The build can be reproduced locally via:
+#   docker build 'https://github.com/elastic/dockerfiles.git#v8.10.3:logstash'
+
+# For a full list of supported images and tags visit https://www.docker.elastic.co
+
+# For Logstash documentation visit https://www.elastic.co/guide/en/logstash/current/docker.html
+
+# See https://github.com/docker-library/official-images/pull/5039 for more details.
diff --git a/update.sh b/update.sh
index 7aad6cb30..520ee765e 100755
--- a/update.sh
+++ b/update.sh
@@ -29,7 +29,7 @@ for version in "${versions[@]}"; do
 	fi
 
 	fullVersion="$(
-		grep -P "^\Qv$rcVersion." <<<"$tags" \
+		grep -P "^\Qv$rcVersion" <<<"$tags" \
 			| grep $rcGrepV -E -- '-(alpha|beta|rc)' \
 			| tail -1
 	)"