diff --git a/packages/babel-parser/src/parser/expression.js b/packages/babel-parser/src/parser/expression.js
index 202d7cc7e0fc..29ef2ceb3c2f 100644
--- a/packages/babel-parser/src/parser/expression.js
+++ b/packages/babel-parser/src/parser/expression.js
@@ -1790,7 +1790,7 @@ export default class ExpressionParser extends LValParser {
       this.state.inPropertyName = true;
       // We check if it's valid for it to be a private name when we push it.
       (prop: $FlowFixMe).key =
-        this.match(tt.num) || this.match(tt.string)
+        this.match(tt.num) || this.match(tt.string) || this.match(tt.bigint)
           ? this.parseExprAtom()
           : this.parseMaybePrivateName();
 
diff --git a/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/input.js b/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/input.js
new file mode 100644
index 000000000000..f6c9c2b0d01f
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/input.js
@@ -0,0 +1 @@
+({ 0n: 0 });
diff --git a/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/output.json b/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/output.json
new file mode 100644
index 000000000000..0e89977f1977
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/bigint/decimal-as-property-name/output.json
@@ -0,0 +1,129 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 12,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 12
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 12,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 12
+      }
+    },
+    "sourceType": "script",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start": 0,
+        "end": 12,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 12
+          }
+        },
+        "expression": {
+          "type": "ObjectExpression",
+          "start": 1,
+          "end": 10,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 1
+            },
+            "end": {
+              "line": 1,
+              "column": 10
+            }
+          },
+          "properties": [
+            {
+              "type": "ObjectProperty",
+              "start": 3,
+              "end": 8,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 3
+                },
+                "end": {
+                  "line": 1,
+                  "column": 8
+                }
+              },
+              "method": false,
+              "key": {
+                "type": "BigIntLiteral",
+                "start": 3,
+                "end": 5,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 3
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 5
+                  }
+                },
+                "extra": {
+                  "rawValue": "0",
+                  "raw": "0n"
+                },
+                "value": "0"
+              },
+              "computed": false,
+              "shorthand": false,
+              "value": {
+                "type": "NumericLiteral",
+                "start": 7,
+                "end": 8,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 7
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 8
+                  }
+                },
+                "extra": {
+                  "rawValue": 0,
+                  "raw": "0"
+                },
+                "value": 0
+              }
+            }
+          ],
+          "extra": {
+            "parenthesized": true,
+            "parenStart": 0
+          }
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/input.js b/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/input.js
new file mode 100644
index 000000000000..537fddf64fc1
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/input.js
@@ -0,0 +1 @@
+({ 0xbeefban: 0 });
diff --git a/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/output.json b/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/output.json
new file mode 100644
index 000000000000..6f4825b89b86
--- /dev/null
+++ b/packages/babel-parser/test/fixtures/experimental/bigint/hex-as-property-name/output.json
@@ -0,0 +1,129 @@
+{
+  "type": "File",
+  "start": 0,
+  "end": 19,
+  "loc": {
+    "start": {
+      "line": 1,
+      "column": 0
+    },
+    "end": {
+      "line": 1,
+      "column": 19
+    }
+  },
+  "program": {
+    "type": "Program",
+    "start": 0,
+    "end": 19,
+    "loc": {
+      "start": {
+        "line": 1,
+        "column": 0
+      },
+      "end": {
+        "line": 1,
+        "column": 19
+      }
+    },
+    "sourceType": "script",
+    "interpreter": null,
+    "body": [
+      {
+        "type": "ExpressionStatement",
+        "start": 0,
+        "end": 19,
+        "loc": {
+          "start": {
+            "line": 1,
+            "column": 0
+          },
+          "end": {
+            "line": 1,
+            "column": 19
+          }
+        },
+        "expression": {
+          "type": "ObjectExpression",
+          "start": 1,
+          "end": 17,
+          "loc": {
+            "start": {
+              "line": 1,
+              "column": 1
+            },
+            "end": {
+              "line": 1,
+              "column": 17
+            }
+          },
+          "properties": [
+            {
+              "type": "ObjectProperty",
+              "start": 3,
+              "end": 15,
+              "loc": {
+                "start": {
+                  "line": 1,
+                  "column": 3
+                },
+                "end": {
+                  "line": 1,
+                  "column": 15
+                }
+              },
+              "method": false,
+              "key": {
+                "type": "BigIntLiteral",
+                "start": 3,
+                "end": 12,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 3
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 12
+                  }
+                },
+                "extra": {
+                  "rawValue": "0xbeefba",
+                  "raw": "0xbeefban"
+                },
+                "value": "0xbeefba"
+              },
+              "computed": false,
+              "shorthand": false,
+              "value": {
+                "type": "NumericLiteral",
+                "start": 14,
+                "end": 15,
+                "loc": {
+                  "start": {
+                    "line": 1,
+                    "column": 14
+                  },
+                  "end": {
+                    "line": 1,
+                    "column": 15
+                  }
+                },
+                "extra": {
+                  "rawValue": 0,
+                  "raw": "0"
+                },
+                "value": 0
+              }
+            }
+          ],
+          "extra": {
+            "parenthesized": true,
+            "parenStart": 0
+          }
+        }
+      }
+    ],
+    "directives": []
+  }
+}
\ No newline at end of file
diff --git a/scripts/parser-tests/typescript/whitelist.txt b/scripts/parser-tests/typescript/whitelist.txt
index 41a3182becc5..c8b5bba49209 100644
--- a/scripts/parser-tests/typescript/whitelist.txt
+++ b/scripts/parser-tests/typescript/whitelist.txt
@@ -61,6 +61,7 @@ augmentedTypesVar.ts
 awaitInNonAsyncFunction.ts
 awaitLiteralValues.ts
 bigIntWithTargetES3.ts
+bigintIndex.ts
 bigintWithLib.ts
 breakNotInIterationOrSwitchStatement1.ts
 breakNotInIterationOrSwitchStatement2.ts