diff --git a/packages/squiggle-lang/package.json b/packages/squiggle-lang/package.json
index f338e564..808a3da7 100644
--- a/packages/squiggle-lang/package.json
+++ b/packages/squiggle-lang/package.json
@@ -57,6 +57,7 @@
     "moduleserve": "^0.9.1",
     "nyc": "^15.1.0",
     "peggy": "^2.0.1",
+    "prettier": "^2.7.1",
     "reanalyze": "^2.23.0",
     "rescript-fast-check": "^1.1.1",
     "ts-jest": "^27.1.4",
diff --git a/yarn.lock b/yarn.lock
index b1c89aa7..58d044d6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4344,7 +4344,7 @@
   dependencies:
     "@types/react" "*"
 
-"@types/react@*", "@types/react@^18.0.1", "@types/react@^18.0.9":
+"@types/react@*", "@types/react@^18.0.9":
   version "18.0.14"
   resolved "https://registry.yarnpkg.com/@types/react/-/react-18.0.14.tgz#e016616ffff51dba01b04945610fe3671fdbe06d"
   integrity sha512-x4gGuASSiWmo0xjDLpm5mPb52syZHJx02VKbqUKdLmKtAwIh63XClGsiTI1K6DO5q7ox4xAsQrU+Gl3+gGXF9Q==
@@ -14791,7 +14791,7 @@ react-vega@^7.5.1:
     prop-types "^15.8.1"
     vega-embed "^6.5.1"
 
-react@^18.0.0, react@^18.1.0:
+react@^18.1.0:
   version "18.2.0"
   resolved "https://registry.yarnpkg.com/react/-/react-18.2.0.tgz#555bd98592883255fa00de14f1151a917b5d77d5"
   integrity sha512-/3IjMdb2L9QbBdWiW5e3P2/npwMBaU9mHCSCUzNln0ZCYbcfTsGbTJrU/kGemdH2IWmB2ioZ+zkxtmq6g09fGQ==