diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07212a74f..ebdc07c54 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 1.1.8
+
+BUG FIXES
+
+- [core] Handle coins with 0-total-valued stakes
+
 ## 1.1.7
 
 IMPROVEMENT
diff --git a/core/state/candidates/candidates.go b/core/state/candidates/candidates.go
index 864be7b8c..4f429572f 100644
--- a/core/state/candidates/candidates.go
+++ b/core/state/candidates/candidates.go
@@ -730,6 +730,10 @@ func (c *Candidates) calculateBipValue(coinSymbol types.CoinSymbol, amount *big.
 		return big.NewInt(0).Set(amount)
 	}
 
+	if amount.Cmp(big.NewInt(0)) == 0 {
+		return big.NewInt(0)
+	}
+
 	totalAmount := big.NewInt(0)
 	if includeSelf {
 		totalAmount.Set(amount)
diff --git a/upgrades/blocks.go b/upgrades/blocks.go
index 59f410594..dff9e64c0 100644
--- a/upgrades/blocks.go
+++ b/upgrades/blocks.go
@@ -3,9 +3,10 @@ package upgrades
 const UpgradeBlock1 = 5000
 const UpgradeBlock2 = 38519
 const UpgradeBlock3 = 109000
+const UpgradeBlock4 = 3183842
 
 func IsUpgradeBlock(height uint64) bool {
-	upgradeBlocks := []uint64{UpgradeBlock1, UpgradeBlock2, UpgradeBlock3}
+	upgradeBlocks := []uint64{UpgradeBlock1, UpgradeBlock2, UpgradeBlock3, UpgradeBlock4}
 
 	for _, block := range upgradeBlocks {
 		if height == block {
diff --git a/upgrades/grace.go b/upgrades/grace.go
index 869fa4bc0..e350ab55f 100644
--- a/upgrades/grace.go
+++ b/upgrades/grace.go
@@ -5,6 +5,7 @@ var gracePeriods = []*gracePeriod{
 	NewGracePeriod(UpgradeBlock1, UpgradeBlock1+120),
 	NewGracePeriod(UpgradeBlock2, UpgradeBlock2+120),
 	NewGracePeriod(UpgradeBlock3, UpgradeBlock3+120),
+	NewGracePeriod(UpgradeBlock4, UpgradeBlock4+120),
 }
 
 type gracePeriod struct {
diff --git a/version/version.go b/version/version.go
index 9fdaa462a..1a8b0f81a 100755
--- a/version/version.go
+++ b/version/version.go
@@ -4,14 +4,14 @@ package version
 const (
 	Maj = "1"
 	Min = "1"
-	Fix = "7"
+	Fix = "8"
 
 	AppVer = 6
 )
 
 var (
 	// Must be a string because scripts like dist.sh read this file.
-	Version = "1.1.7"
+	Version = "1.1.8"
 
 	// GitCommit is the current HEAD set using ldflags.
 	GitCommit string