diff --git a/Dockerfile b/Dockerfile
index fae23a04a95..a111db0e280 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,7 +46,7 @@ RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=0.1.1 --var app=maven-metadata-release --file {{.app}} \
   --from https://github.com/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ARG MC_HELPER_VERSION=1.25.11
+ARG MC_HELPER_VERSION=1.25.12
 ARG MC_HELPER_BASE_URL=https://github.com/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
 RUN curl -fsSL ${MC_HELPER_BASE_URL}/mc-image-helper-${MC_HELPER_VERSION}.tgz \
   | tar -C /usr/share -zxf - \
diff --git a/scripts/start-deployForge b/scripts/start-deployForge
index 52e5d956ea3..e19f2e2d6db 100755
--- a/scripts/start-deployForge
+++ b/scripts/start-deployForge
@@ -7,11 +7,13 @@
 . "${SCRIPTS:-$(dirname "$0")}/start-utils"
 isDebugging && set -x
 
+# NOTE: VERSION rather than VANILLA_VERSION is specified to allow for latest supported
+#       Forge version to be selected.
 if [[ ${FORGE_INSTALLER} ]]; then
   if ! mc-image-helper install-forge \
     --output-directory=/data \
     --results-file=/data/.run-forge.env \
-    --minecraft-version="${VANILLA_VERSION}" \
+    --minecraft-version="${VERSION}" \
     --forge-installer="${FORGE_INSTALLER}" \
     --force-reinstall="${FORGE_FORCE_REINSTALL}"; then
       log "ERROR failed to install Forge given installer ${FORGE_INSTALLER}"
@@ -22,7 +24,7 @@ else
   if ! mc-image-helper install-forge \
     --output-directory=/data \
     --results-file=/data/.run-forge.env \
-    --minecraft-version="${VANILLA_VERSION}" \
+    --minecraft-version="${VERSION}" \
     --forge-version="${FORGE_VERSION}" \
     --force-reinstall="${FORGE_FORCE_REINSTALL}"; then
       log "ERROR failed to install Forge"