diff --git a/README.md b/README.md
index 352cb66f6a..d2f81f9876 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,8 @@ The Source Academy (<https://sourceacademy.org/>) is an immersive online experie
 
 1. Clone this repository and navigate to it using your command line
 
+1. Install the version of `yarn` as specified in `package.json`, `packageManager`. On macos, you may need to run `corepack enable`.
+
 1. Run `yarn install` to install dependencies.
 
    - If you are on Ubuntu and encounter the error message: `No such file or directory: 'install'`, you might be running the incorrect "yarn" from the cmdtest testing suite instead of the JavaScript package manager of the same name. Refer to this [StackOverflow post](https://stackoverflow.com/questions/46013544/yarn-install-command-error-no-such-file-or-directory-install).
diff --git a/package.json b/package.json
index 1bb9f2c406..99c6b36a06 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "i18next-browser-languagedetector": "^8.0.0",
     "java-slang": "^1.0.13",
     "js-cookie": "^3.0.5",
-    "js-slang": "^1.0.79",
+    "js-slang": "^1.0.80",
     "js-yaml": "^4.1.0",
     "konva": "^9.2.0",
     "lodash": "^4.17.21",
diff --git a/yarn.lock b/yarn.lock
index c96a4f6baa..3cf4a3c557 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9652,7 +9652,7 @@ __metadata:
     i18next-browser-languagedetector: "npm:^8.0.0"
     java-slang: "npm:^1.0.13"
     js-cookie: "npm:^3.0.5"
-    js-slang: "npm:^1.0.79"
+    js-slang: "npm:^1.0.80"
     js-yaml: "npm:^4.1.0"
     konva: "npm:^9.2.0"
     lodash: "npm:^4.17.21"
@@ -12101,9 +12101,9 @@ __metadata:
   languageName: node
   linkType: hard
 
-"js-slang@npm:^1.0.79":
-  version: 1.0.79
-  resolution: "js-slang@npm:1.0.79"
+"js-slang@npm:^1.0.80":
+  version: 1.0.80
+  resolution: "js-slang@npm:1.0.80"
   dependencies:
     "@babel/parser": "npm:^7.19.4"
     "@commander-js/extra-typings": "npm:^12.0.1"
@@ -12122,7 +12122,7 @@ __metadata:
     source-map: "npm:0.7.3"
   bin:
     js-slang: dist/repl/index.js
-  checksum: 10c0/e0e7db8a985ead985b30ad8644f371f4981cdac7ee6b1fb13a993f064ae22982a4924cd34a3e3387d065a21b3ad211f19bb03888b74baad771e4533aaee13d48
+  checksum: 10c0/feb80d5d4ea4a667037cb786dc09751a8ff5e7e98565f0b5154200ea65ef75d34b55fb08145f80ed993e86477de5caf56082c147c57ebf09c2ed9dc1bb9f8931
   languageName: node
   linkType: hard