diff --git a/Dockerfile b/Dockerfile
index 45140c09..47ba3259 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -48,7 +48,7 @@ RUN easy-add --var os=${TARGETOS} --var arch=${TARGETARCH}${TARGETVARIANT} \
   --var version=${MC_SERVER_RUNNER_VERSION} --var app=mc-server-runner --file {{.app}} \
   --from ${GITHUB_BASEURL}/itzg/{{.app}}/releases/download/{{.version}}/{{.app}}_{{.version}}_{{.os}}_{{.arch}}.tar.gz
 
-ARG MC_HELPER_VERSION=1.48.4
+ARG MC_HELPER_VERSION=1.48.5
 ARG MC_HELPER_BASE_URL=${GITHUB_BASEURL}/itzg/mc-image-helper/releases/download/${MC_HELPER_VERSION}
 # used for cache busting local copy of mc-image-helper
 ARG MC_HELPER_REV=1
diff --git a/scripts/start-deployModrinth b/scripts/start-deployModrinth
index f22ff42f..b79a1bfa 100644
--- a/scripts/start-deployModrinth
+++ b/scripts/start-deployModrinth
@@ -14,6 +14,7 @@ resultsFile=/data/.install-modrinth.env
 : "${MODRINTH_FORCE_INCLUDE_FILES=}"
 : "${MODRINTH_OVERRIDES_EXCLUSIONS=}"
 : "${MODRINTH_DEFAULT_EXCLUDE_INCLUDES=/image/modrinth-exclude-include.json}"
+: "${MODRINTH_FORCE_MODLOADER_REINSTALL:=${FORCE_MODLOADER_REINSTALL:-false}}"
 
 if [[ ! $MODRINTH_MODPACK ]]; then
   logError "MODRINTH_MODPACK must be set when using TYPE/MODPACK_PLATFORM/MOD_PLATFORM of MODRINTH"
@@ -33,6 +34,9 @@ args=(
 if [[ $MODRINTH_IGNORE_MISSING_FILES ]]; then
   args+=(--ignore-missing-files "$MODRINTH_IGNORE_MISSING_FILES")
 fi
+if isTrue "${MODRINTH_FORCE_MODLOADER_REINSTALL}"; then
+  args+=(--force-modloader-reinstall)
+fi
 
 case "${VERSION^^}" in
   LATEST)