diff --git a/services/identity/src/constants.rs b/services/identity/src/constants.rs
--- a/services/identity/src/constants.rs
+++ b/services/identity/src/constants.rs
@@ -299,7 +299,8 @@
 
 // Minimum supported code versions
 
-pub const MIN_SUPPORTED_NATIVE_VERSION: u64 = 270;
+pub const MIN_SUPPORTED_NATIVE_VERSION: u64 = 401;
+pub const MIN_SUPPORTED_WEB_VERSION: u64 = 120;
 
 // Request metadata
 
diff --git a/services/identity/src/grpc_services/shared.rs b/services/identity/src/grpc_services/shared.rs
--- a/services/identity/src/grpc_services/shared.rs
+++ b/services/identity/src/grpc_services/shared.rs
@@ -4,6 +4,7 @@
 
 use crate::constants::{
   request_metadata, tonic_status_messages, MIN_SUPPORTED_NATIVE_VERSION,
+  MIN_SUPPORTED_WEB_VERSION,
 };
 
 pub use grpc_clients::identity::shared::PlatformMetadata;
@@ -18,6 +19,14 @@
     {
       Err(unsupported_version())
     }
+    Some((version, platform))
+      if (platform == "web"
+        || platform == "windows"
+        || platform == "mac_os")
+        && version < MIN_SUPPORTED_WEB_VERSION =>
+    {
+      Err(unsupported_version())
+    }
     _ => Ok(req),
   }
 }