diff --git a/go/chromiumos/bot_scaling.pb.go b/go/chromiumos/bot_scaling.pb.go
index 2265aab..a311ada 100644
--- a/go/chromiumos/bot_scaling.pb.go
+++ b/go/chromiumos/bot_scaling.pb.go
@@ -119,7 +119,7 @@
 	// The string bot "shirt size" to be requested for the group.
 	BotSize string `protobuf:"bytes,1,opt,name=bot_size,json=botSize,proto3" json:"bot_size,omitempty"`
 	// The number of cores per bot. Will be used to limit quota usage.
-	CoresPerBot int32 `protobuf:"varint,2,opt,name=cores_per_bot,json=coresPerBot,proto3" json:"cores_per_bot,omitempty"`
+	CoresPerBot float32 `protobuf:"fixed32,2,opt,name=cores_per_bot,json=coresPerBot,proto3" json:"cores_per_bot,omitempty"`
 	// Estimated hourly cost.
 	HourlyCost float32 `protobuf:"fixed32,3,opt,name=hourly_cost,json=hourlyCost,proto3" json:"hourly_cost,omitempty"`
 	// Amount of memory in GB allocated to bot.
@@ -161,7 +161,7 @@
 	return ""
 }
 
-func (m *BotType) GetCoresPerBot() int32 {
+func (m *BotType) GetCoresPerBot() float32 {
 	if m != nil {
 		return m.CoresPerBot
 	}
@@ -885,7 +885,7 @@
 func init() { proto.RegisterFile("chromiumos/bot_scaling.proto", fileDescriptor_dbe70eabfd64e7ef) }
 
 var fileDescriptor_dbe70eabfd64e7ef = []byte{
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+	0xc5, 0xa6, 0x9b, 0x53, 0x8c, 0xdc, 0x87, 0x6e, 0x32, 0x17, 0xcd, 0x3f, 0x2d, 0xa8, 0x62, 0xe6,
+	0xb1, 0x2e, 0x67, 0x89, 0x69, 0x4a, 0x07, 0x0e, 0xb3, 0x4f, 0x62, 0xa6, 0x13, 0x3d, 0x31, 0xaf,
+	0x9e, 0xd5, 0x09, 0xae, 0x8a, 0x55, 0x53, 0x20, 0x0c, 0xc7, 0xdc, 0x24, 0xef, 0xcc, 0x97, 0xd9,
+	0xdb, 0x39, 0x45, 0xf4, 0x7a, 0x95, 0x68, 0x47, 0x91, 0x70, 0x9d, 0x6f, 0x83, 0x9d, 0xaf, 0x7f,
+	0xfe, 0x2a, 0x60, 0x0b, 0xcf, 0x36, 0xe3, 0xc1, 0xe9, 0xca, 0xaf, 0x08, 0x8d, 0x6f, 0xb8, 0x7b,
+	0xaa, 0x7e, 0x42, 0x4e, 0x03, 0xb6, 0xb2, 0xe3, 0xed, 0x2b, 0xf0, 0xcb, 0x7f, 0x02, 0x00, 0x00,
+	0xff, 0xff, 0xcd, 0xc6, 0x20, 0xbe, 0xb9, 0x08, 0x00, 0x00,
 }
diff --git a/src/chromiumos/bot_scaling.proto b/src/chromiumos/bot_scaling.proto
index 9af0f16..9076751 100644
--- a/src/chromiumos/bot_scaling.proto
+++ b/src/chromiumos/bot_scaling.proto
@@ -13,7 +13,7 @@
   // The string bot "shirt size" to be requested for the group.
   string bot_size = 1;
   // The number of cores per bot. Will be used to limit quota usage.
-  int32 cores_per_bot = 2;
+  float cores_per_bot = 2;
   // Estimated hourly cost.
   float hourly_cost = 3;
   // Amount of memory in GB allocated to bot.