diff --git a/src/execution/execute.ts b/src/execution/execute.ts
index fa4ed54a76..817e596345 100644
--- a/src/execution/execute.ts
+++ b/src/execution/execute.ts
@@ -99,7 +99,7 @@ export type ExecutionContext = {
   rootValue: unknown;
   contextValue: unknown;
   operation: OperationDefinitionNode;
-  variableValues: { [variable: string]: unknown; };
+  variableValues: { [variable: string]: unknown };
   fieldResolver: GraphQLFieldResolver<any, any>;
   typeResolver: GraphQLTypeResolver<any, any>;
   errors: Array<GraphQLError>;
@@ -129,7 +129,7 @@ export type ExecutionArgs = {
   document: DocumentNode;
   rootValue?: unknown;
   contextValue?: unknown;
-  variableValues?: Maybe<{ readonly [variable: string]: unknown; }>;
+  variableValues?: Maybe<{ readonly [variable: string]: unknown }>;
   operationName?: Maybe<string>;
   fieldResolver?: Maybe<GraphQLFieldResolver<any, any>>;
   typeResolver?: Maybe<GraphQLTypeResolver<any, any>>;
@@ -230,7 +230,7 @@ function buildResponse(
 export function assertValidExecutionArguments(
   schema: GraphQLSchema,
   document: DocumentNode,
-  rawVariableValues: Maybe<{ readonly [variable: string]: unknown; }>,
+  rawVariableValues: Maybe<{ readonly [variable: string]: unknown }>,
 ): void {
   devAssert(document, 'Must provide document.');
 
@@ -257,7 +257,7 @@ export function buildExecutionContext(
   document: DocumentNode,
   rootValue: unknown,
   contextValue: unknown,
-  rawVariableValues: Maybe<{ readonly [variable: string]: unknown; }>,
+  rawVariableValues: Maybe<{ readonly [variable: string]: unknown }>,
   operationName: Maybe<string>,
   fieldResolver: Maybe<GraphQLFieldResolver<unknown, unknown>>,
   typeResolver?: Maybe<GraphQLTypeResolver<unknown, unknown>>,
diff --git a/src/language/visitor.ts b/src/language/visitor.ts
index b1dd3b867e..612333eb06 100644
--- a/src/language/visitor.ts
+++ b/src/language/visitor.ts
@@ -372,7 +372,7 @@ export function getVisitFn(
   visitor: ASTVisitor,
   kind: string,
   isLeaving: boolean,
-  ): Maybe<ASTVisitFn<ASTNode>> {
+): Maybe<ASTVisitFn<ASTNode>> {
   const kindVisitor = visitor[kind];
   if (kindVisitor) {
     if (!isLeaving && typeof kindVisitor === 'function') {