diff --git a/src/language/__tests__/lexer-test.ts b/src/language/__tests__/lexer-test.ts
index 8ec91df52f..080431794f 100644
--- a/src/language/__tests__/lexer-test.ts
+++ b/src/language/__tests__/lexer-test.ts
@@ -936,13 +936,6 @@ describe('Lexer', () => {
       value: undefined,
     });
 
-    expect(lexOne('?')).to.contain({
-      kind: TokenKind.QUESTION_MARK,
-      start: 0,
-      end: 1,
-      value: undefined,
-    });
-
     expect(lexOne('$')).to.contain({
       kind: TokenKind.DOLLAR,
       start: 0,
@@ -1188,7 +1181,6 @@ describe('isPunctuatorTokenKind', () => {
 
   it('returns true for punctuator tokens', () => {
     expect(isPunctuatorToken('!')).to.equal(true);
-    expect(isPunctuatorToken('?')).to.equal(true);
     expect(isPunctuatorToken('$')).to.equal(true);
     expect(isPunctuatorToken('&')).to.equal(true);
     expect(isPunctuatorToken('(')).to.equal(true);
diff --git a/src/language/__tests__/printer-test.ts b/src/language/__tests__/printer-test.ts
index 5da202ba1a..c890e21198 100644
--- a/src/language/__tests__/printer-test.ts
+++ b/src/language/__tests__/printer-test.ts
@@ -223,19 +223,6 @@ describe('Printer: Query document', () => {
                 ...frag @onFragmentSpread
               }
             }
-            field3!
-            field4?
-            requiredField5: field5!
-            requiredSelectionSet(first: 10)! @directive {
-              field
-            }
-            unsetListItemsRequiredList: listField[]!
-            requiredListItemsUnsetList: listField[!]
-            requiredListItemsRequiredList: listField[!]!
-            unsetListItemsOptionalList: listField[]?
-            optionalListItemsUnsetList: listField[?]
-            optionalListItemsOptionalList: listField[?]?
-            multidimensionalList: listField[[[!]!]!]!
           }
           ... @skip(unless: $foo) {
             id
diff --git a/src/language/__tests__/visitor-test.ts b/src/language/__tests__/visitor-test.ts
index d7579abf69..1837c65dd5 100644
--- a/src/language/__tests__/visitor-test.ts
+++ b/src/language/__tests__/visitor-test.ts
@@ -654,18 +654,6 @@ describe('Visitor', () => {
       ['leave', 'Field', 1, undefined],
       ['leave', 'SelectionSet', 'selectionSet', 'Field'],
       ['leave', 'Field', 0, undefined],
-      ['enter', 'Field', 1, undefined],
-      ['enter', 'Name', 'name', 'Field'],
-      ['leave', 'Name', 'name', 'Field'],
-      ['enter', 'NonNullAssertion', 'nullabilityAssertion', 'Field'],
-      ['leave', 'NonNullAssertion', 'nullabilityAssertion', 'Field'],
-      ['leave', 'Field', 1, undefined],
-      ['enter', 'Field', 2, undefined],
-      ['enter', 'Name', 'name', 'Field'],
-      ['leave', 'Name', 'name', 'Field'],
-      ['enter', 'ErrorBoundary', 'nullabilityAssertion', 'Field'],
-      ['leave', 'ErrorBoundary', 'nullabilityAssertion', 'Field'],
-      ['leave', 'Field', 2, undefined],
       ['leave', 'SelectionSet', 'selectionSet', 'InlineFragment'],
       ['leave', 'InlineFragment', 1, undefined],
       ['enter', 'InlineFragment', 2, undefined],
diff --git a/src/language/ast.ts b/src/language/ast.ts
index 103b2d1233..6b4b058366 100644
--- a/src/language/ast.ts
+++ b/src/language/ast.ts
@@ -207,13 +207,7 @@ export const QueryDocumentKeys: {
   VariableDefinition: ['variable', 'type', 'defaultValue', 'directives'],
   Variable: ['name'],
   SelectionSet: ['selections'],
-  Field: [
-    'alias',
-    'name',
-    'arguments',
-    'directives',
-    'selectionSet',
-  ],
+  Field: ['alias', 'name', 'arguments', 'directives', 'selectionSet'],
   Argument: ['name', 'value'],
 
   FragmentSpread: ['name', 'directives'],
diff --git a/src/language/lexer.ts b/src/language/lexer.ts
index c20c879700..e849578f22 100644
--- a/src/language/lexer.ts
+++ b/src/language/lexer.ts
@@ -91,7 +91,6 @@ export class Lexer {
 export function isPunctuatorTokenKind(kind: TokenKind): boolean {
   return (
     kind === TokenKind.BANG ||
-    kind === TokenKind.QUESTION_MARK ||
     kind === TokenKind.DOLLAR ||
     kind === TokenKind.AMP ||
     kind === TokenKind.PAREN_L ||
@@ -282,13 +281,6 @@ function readNextToken(lexer: Lexer, start: number): Token {
         return createToken(lexer, TokenKind.PIPE, position, position + 1);
       case 0x007d: // }
         return createToken(lexer, TokenKind.BRACE_R, position, position + 1);
-      case 0x003f: // ?
-        return createToken(
-          lexer,
-          TokenKind.QUESTION_MARK,
-          position,
-          position + 1,
-        );
       // StringValue
       case 0x0022: // "
         if (
diff --git a/src/language/printer.ts b/src/language/printer.ts
index 9b797948b3..1654c9f4ac 100644
--- a/src/language/printer.ts
+++ b/src/language/printer.ts
@@ -55,13 +55,7 @@ const printDocASTReducer: ASTReducer<string> = {
   SelectionSet: { leave: ({ selections }) => block(selections) },
 
   Field: {
-    leave({
-      alias,
-      name,
-      arguments: args,
-      directives,
-      selectionSet,
-    }) {
+    leave({ alias, name, arguments: args, directives, selectionSet }) {
       const prefix = join([wrap('', alias, ': '), name], '');
       let argsLine = prefix + wrap('(', join(args, ', '), ')');