diff --git a/CHANGELOG.md b/CHANGELOG.md
index 528bdae..c3c4efd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 dev:
 
+1.9.0-beta.3:
+- fix FromAsCasing warning in Docker image building
+- change controller.fast-track.grace default value from 200ms to 500ms
+
 1.9.0-beta.2:
   - change default timestamp in logs to millisecond-precision
   - allow custom timestamp formatting in logs
diff --git a/docs/configuration.md b/docs/configuration.md
index 9312e0d..67ac8a6 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -80,7 +80,7 @@ controller:
     sync-committees: true
     # grace is the delay between receiving the notification of the head block and starting the fast track process.  This allows
     # the rest of the network to settle if we saw the head block early.
-    grace: '200ms'
+    grace: '500ms'
   # This flag enables verification of sync committee messages included in SyncAggregate. Exposes information via metrics and logs, 
   # defaults to false as this requires some extra processing to calculate the required metrics.
   verify-sync-committee-inclusion: false
diff --git a/main.go b/main.go
index 0d2629c..1d61223 100644
--- a/main.go
+++ b/main.go
@@ -110,7 +110,7 @@ import (
 )
 
 // ReleaseVersion is the release version for the code.
-var ReleaseVersion = "1.9.0-beta.2"
+var ReleaseVersion = "1.9.0-beta.3"
 
 func main() {
 	exitCode := main2()
@@ -241,7 +241,7 @@ func fetchConfig() error {
 	viper.SetDefault("controller.verify-sync-committee-inclusion", false)
 	viper.SetDefault("controller.fast-track.attestations", true)
 	viper.SetDefault("controller.fast-track.sync-committees", true)
-	viper.SetDefault("controller.fast-track.grace", 200*time.Millisecond)
+	viper.SetDefault("controller.fast-track.grace", 500*time.Millisecond)
 	viper.SetDefault("blockrelay.timeout", 1*time.Second)
 	viper.SetDefault("blockrelay.listen-address", "0.0.0.0:18550")
 	viper.SetDefault("blockrelay.fallback-gas-limit", uint64(30000000))