diff --git a/package-lock.json b/package-lock.json
index 803dfa3c..314c4b8f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,7 +6,7 @@
   "packages": {
     "": {
       "name": "astring",
-      "version": "1.8.6",
+      "version": "1.9.0",
       "license": "MIT",
       "bin": {
         "astring": "bin/astring"
@@ -17,7 +17,7 @@
         "@babel/generator": "^7.14.3",
         "@babel/parser": "^7.16.4",
         "@babel/preset-env": "^7.14.4",
-        "acorn": "^8.6.0",
+        "acorn": "^8.12.1",
         "acorn-import-attributes": "^1.9.5",
         "astravel": "^0.5.0",
         "ava": "^3.15.0",
@@ -2804,9 +2804,9 @@
       "dev": true
     },
     "node_modules/acorn": {
-      "version": "8.6.0",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.6.0.tgz",
-      "integrity": "sha512-U1riIR+lBSNi3IbxtaHOIKdH8sLFv3NYfNv8sg7ZsNhcfl4HF2++BfqqrNAxoCLQW1iiylOj76ecnaUxz+z9yw==",
+      "version": "8.12.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.12.1.tgz",
+      "integrity": "sha512-tcpGyI9zbizT9JbV6oYE477V6mTlXvvi0T0G3SNIYE2apm/G5huBa1+K89VGeovbg+jycCrfhl3ADxErOuO6Jg==",
       "dev": true,
       "bin": {
         "acorn": "bin/acorn"
@@ -2815,16 +2815,6 @@
         "node": ">=0.4.0"
       }
     },
-    "node_modules/acorn-dynamic-import": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz",
-      "integrity": "sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==",
-      "deprecated": "This is probably built in to whatever tool you're using. If you still need it... idk",
-      "dev": true,
-      "peerDependencies": {
-        "acorn": "^6.0.0"
-      }
-    },
     "node_modules/acorn-import-attributes": {
       "version": "1.9.5",
       "resolved": "https://registry.npmjs.org/acorn-import-attributes/-/acorn-import-attributes-1.9.5.tgz",
@@ -2835,12 +2825,12 @@
       }
     },
     "node_modules/acorn-jsx": {
-      "version": "5.2.0",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.2.0.tgz",
-      "integrity": "sha512-HiUX/+K2YpkpJ+SzBffkM/AQ2YE03S0U1kjTLVpoJdhZMOWy8qvXVN9JdLqv2QsaQ6MPYQIuNmwD8zOiYUofLQ==",
+      "version": "5.3.2",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
+      "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
       "dev": true,
       "peerDependencies": {
-        "acorn": "^6.0.0 || ^7.0.0"
+        "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
     "node_modules/acorn-walk": {
@@ -3209,18 +3199,6 @@
         "node": ">=10.18.0 <11 || >=12.14.0 <12.17.0 || >=12.17.0 <13 || >=14.0.0 <15 || >=15"
       }
     },
-    "node_modules/ava/node_modules/acorn": {
-      "version": "8.0.4",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.0.4.tgz",
-      "integrity": "sha512-XNP0PqF1XD19ZlLKvB7cMmnZswW4C/03pRHgirB30uSJTaS3A3V1/P4sS3HPvFmjoriPCJQs+JDSbm4bL1TxGQ==",
-      "dev": true,
-      "bin": {
-        "acorn": "bin/acorn"
-      },
-      "engines": {
-        "node": ">=0.4.0"
-      }
-    },
     "node_modules/ava/node_modules/ansi-regex": {
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
@@ -4201,6 +4179,16 @@
         "node": ">=0.4.0"
       }
     },
+    "node_modules/buble/node_modules/acorn-dynamic-import": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/acorn-dynamic-import/-/acorn-dynamic-import-4.0.0.tgz",
+      "integrity": "sha512-d3OEjQV4ROpoflsnUA8HozoIR504TFxNivYEUi6uwz0IYhBkTDXGuWlNdMtybRt3nqVx/L6XqMt0FxkXuWKZhw==",
+      "deprecated": "This is probably built in to whatever tool you're using. If you still need it... idk",
+      "dev": true,
+      "peerDependencies": {
+        "acorn": "^6.0.0"
+      }
+    },
     "node_modules/buble/node_modules/minimist": {
       "version": "1.2.5",
       "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
@@ -6692,15 +6680,6 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
-    "node_modules/espree/node_modules/acorn-jsx": {
-      "version": "5.3.2",
-      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz",
-      "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==",
-      "dev": true,
-      "peerDependencies": {
-        "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
-      }
-    },
     "node_modules/esprima": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
diff --git a/package.json b/package.json
index d8d78634..05b633f2 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "@babel/generator": "^7.14.3",
     "@babel/parser": "^7.16.4",
     "@babel/preset-env": "^7.14.4",
-    "acorn": "^8.6.0",
+    "acorn": "^8.12.1",
     "acorn-import-attributes": "^1.9.5",
     "astravel": "^0.5.0",
     "ava": "^3.15.0",