diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 0956220..f2b60f8 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -32,6 +32,7 @@ services:
       #EN_ANDROID_ASSET_HASH: ""
       #EN_IOS_ASSET_HASH: ""
       #WINDOWS_ASSET_HASH: "" # Windows asset hash (JP only; GL Windows is unused)
+      #FORCE_UPDATES: false # Force outdated clients to update
 
       # Everything below is for the "Help" page
       #ANDROID_GLOBAL: "link.to/patched/android/global.apk"
diff --git a/docker/start.sh b/docker/start.sh
index 4036108..ea9e98b 100755
--- a/docker/start.sh
+++ b/docker/start.sh
@@ -18,6 +18,7 @@ args=(
 [ "${NERF_CUSTOM_CARDS:-}" = "true" ]  && args+=(--nerf-custom-cards)
 [ "${ENABLE_CUSTOM_3DMV:-}" = "true" ] && args+=(--enable-custom-3dmv)
 [ "${ENABLE_ARCADE:-}" = "true" ]    && args+=(--enable-arcade)
+[ "${FORCE_UPDATES:-}" = "true" ]    && args+=(--force-updates)
 
 add_opt() {
   local value="$1" flag="$2"
diff --git a/src/options.rs b/src/options.rs
index 456c68f..fb4dc2e 100644
--- a/src/options.rs
+++ b/src/options.rs
@@ -89,6 +89,9 @@ pub struct Args {
     #[arg(long, default_value = "", help = "Asset version for overridden asset hashes.")]
     pub asset_version: String,
 
+    #[arg(long, default_value_t = false, help = "Force an application update for asset versions not marked as latest")]
+    pub force_updates: bool,
+
     #[arg(long, default_value = "", help = "Asset hash for windows client.")]
     pub windows_asset_hash: String,
 
diff --git a/src/router/global.rs b/src/router/global.rs
index abc3cd0..33c907b 100644
--- a/src/router/global.rs
+++ b/src/router/global.rs
@@ -100,13 +100,16 @@ impl AssetVersion {
 }
 
 fn valid_hashes(asset_version: &str, platform: &str) -> Vec<String> {
+    let args = crate::get_args();
     let mut out = Vec::new();
     for entry in ASSET_VERSIONS {
         if entry.platform != platform {
             continue;
         }
         if entry.version == asset_version && !entry.hash.is_empty() {
-            out.push(entry.stock_hash());
+            if entry.latest || !args.force_updates {
+                out.push(entry.stock_hash());
+            }
         }
         if entry.latest {
             if let Some((ov, oh)) = entry.override_pair() {