diff --git a/benchutil/wide_schema.go b/benchutil/wide_schema.go
index 2c7c43a2..1177fce6 100644
--- a/benchutil/wide_schema.go
+++ b/benchutil/wide_schema.go
@@ -81,7 +81,7 @@ func generateFieldNameFromX(x int) string {
 	for {
 		r := v % 10
 		out = alphabet[r] + out
-		v = v / 10
+		v /= 10
 		if v == 0 {
 			break
 		}
diff --git a/language/visitor/visitor.go b/language/visitor/visitor.go
index 70754364..efd720dd 100644
--- a/language/visitor/visitor.go
+++ b/language/visitor/visitor.go
@@ -203,7 +203,7 @@ func Visit(root ast.Node, visitorOpts *VisitorOptions, keyMap KeyMap) interface{
 	// abstract algorithm
 Loop:
 	for {
-		index = index + 1
+		index++
 
 		isLeaving := (len(keys) == index)
 		var (
diff --git a/rules.go b/rules.go
index 41b94494..ae0c75b9 100644
--- a/rules.go
+++ b/rules.go
@@ -297,7 +297,7 @@ func getSuggestedTypeNames(schema *Schema, ttype Output, fieldName string) []str
 			if index < len(suggestedInterfaces) {
 				s := suggestedInterfaces[index]
 				if s.name == possibleInterface.Name() {
-					s.count = s.count + 1
+					s.count++
 				}
 			}
 		}
@@ -782,7 +782,7 @@ func LoneAnonymousOperationRule(context *ValidationContext) *ValidationRuleInsta
 						operationCount = 0
 						for _, definition := range node.Definitions {
 							if definition.GetKind() == kinds.OperationDefinition {
-								operationCount = operationCount + 1
+								operationCount++
 							}
 						}
 					}
diff --git a/testutil/rules_test_harness.go b/testutil/rules_test_harness.go
index db956736..6de492f6 100644
--- a/testutil/rules_test_harness.go
+++ b/testutil/rules_test_harness.go
@@ -604,7 +604,7 @@ func ExpectPassesRuleWithSchema(t *testing.T, schema *graphql.Schema, rule graph
 }
 func RuleError(message string, locs ...int) gqlerrors.FormattedError {
 	locations := []location.SourceLocation{}
-	for i := 0; i < len(locs); i = i + 2 {
+	for i := 0; i < len(locs); i += 2 {
 		line := locs[i]
 		col := 0
 		if i+1 < len(locs) {