diff --git a/configs/mainnet/phase0.yaml b/configs/mainnet/phase0.yaml
index 616baaf34..48a479d80 100644
--- a/configs/mainnet/phase0.yaml
+++ b/configs/mainnet/phase0.yaml
@@ -27,6 +27,8 @@ HYSTERESIS_QUOTIENT: 4
 HYSTERESIS_DOWNWARD_MULTIPLIER: 1
 # 5 (plus 1.25)
 HYSTERESIS_UPWARD_MULTIPLIER: 5
+# 3
+PROPORTIONAL_SLASHING_MULTIPLIER: 3
 
 
 # Fork Choice
diff --git a/configs/minimal/phase0.yaml b/configs/minimal/phase0.yaml
index 78cd60177..02afa369c 100644
--- a/configs/minimal/phase0.yaml
+++ b/configs/minimal/phase0.yaml
@@ -26,7 +26,8 @@ HYSTERESIS_QUOTIENT: 4
 HYSTERESIS_DOWNWARD_MULTIPLIER: 1
 # 5 (plus 1.25)
 HYSTERESIS_UPWARD_MULTIPLIER: 5
-
+# 3
+PROPORTIONAL_SLASHING_MULTIPLIER: 3
 
 
 # Fork Choice