diff --git a/internal/start/start.go b/internal/start/start.go
index 91bda92da..f43e2e5b6 100644
--- a/internal/start/start.go
+++ b/internal/start/start.go
@@ -592,6 +592,7 @@ EOF
 					"DNS_NODES=''",
 					"RLIMIT_NOFILE=",
 					"REALTIME_IP_VERSION=" + string(utils.Config.Realtime.IpVersion),
+					fmt.Sprintf("MAX_HEADER_LENGTH=%d", utils.Config.Realtime.MaxHeaderLength),
 				},
 				Cmd: []string{
 					"/bin/sh", "-c",
diff --git a/internal/utils/config.go b/internal/utils/config.go
index 139f09a72..7584d6543 100644
--- a/internal/utils/config.go
+++ b/internal/utils/config.go
@@ -160,7 +160,8 @@ var Config = config{
 		RootKey:  "d4dc5b6d4a1d6a10b2c1e76112c994d65db7cec380572cc1839624d4be3fa275",
 	},
 	Realtime: realtime{
-		IpVersion: AddressIPv6,
+		IpVersion:       AddressIPv6,
+		MaxHeaderLength: 4096,
 	},
 	Storage: storage{
 		Image: StorageImage,
@@ -275,8 +276,9 @@ type (
 	}
 
 	realtime struct {
-		Enabled   bool          `toml:"enabled"`
-		IpVersion AddressFamily `toml:"ip_version"`
+		Enabled         bool          `toml:"enabled"`
+		IpVersion       AddressFamily `toml:"ip_version"`
+		MaxHeaderLength uint          `toml:"max_header_length"`
 	}
 
 	studio struct {
diff --git a/internal/utils/misc.go b/internal/utils/misc.go
index 3c963838e..6fb6c91e4 100644
--- a/internal/utils/misc.go
+++ b/internal/utils/misc.go
@@ -37,7 +37,7 @@ const (
 	VectorImage      = "timberio/vector:0.28.1-alpine"
 	PgbouncerImage   = "bitnami/pgbouncer:1.20.1-debian-11-r39"
 	GotrueImage      = "supabase/gotrue:v2.125.1"
-	RealtimeImage    = "supabase/realtime:v2.25.35"
+	RealtimeImage    = "supabase/realtime:v2.25.50"
 	StorageImage     = "supabase/storage-api:v0.43.11"
 	LogflareImage    = "supabase/logflare:1.4.0"
 	// Should be kept in-sync with EdgeRuntimeImage
diff --git a/internal/utils/templates/init_config.test.toml b/internal/utils/templates/init_config.test.toml
index ff082ff39..e62b55ab9 100644
--- a/internal/utils/templates/init_config.test.toml
+++ b/internal/utils/templates/init_config.test.toml
@@ -40,6 +40,8 @@ max_client_conn = 100
 enabled = true
 # Bind realtime via either IPv4 or IPv6. (default: IPv6)
 ip_version = "IPv4"
+# The maximum length in bytes of HTTP request headers. (default: 4096)
+max_header_length = 8192
 
 [studio]
 enabled = true
diff --git a/internal/utils/templates/init_config.toml b/internal/utils/templates/init_config.toml
index a7efab10d..06a5dc755 100644
--- a/internal/utils/templates/init_config.toml
+++ b/internal/utils/templates/init_config.toml
@@ -40,6 +40,8 @@ max_client_conn = 100
 enabled = true
 # Bind realtime via either IPv4 or IPv6. (default: IPv6)
 # ip_version = "IPv6"
+# The maximum length in bytes of HTTP request headers. (default: 4096)
+# max_header_length = 4096
 
 [studio]
 enabled = true