diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index fe431af9..919f83ae 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -90,11 +90,11 @@ jobs:
           AWS_CLOUDFRONT_DISTRIBUTION_ID: "E2SN9UWE8YY9EG"
         run: |
           pip install awscli
-          gzip -k _shinylive/r/shinylive/webr/library.data
+          gzip -k _shinylive/r/shinylive/webr/R.bin.wasm
           aws s3 sync _shinylive s3://shinylive.io --delete
           aws s3 cp --exclude "*" --include "*.data" --include "*.so" --recursive --content-type="application/wasm" --metadata-directive="REPLACE" s3://shinylive.io/r/shinylive/webr/ s3://shinylive.io/r/shinylive/webr/
           aws s3 cp --exclude "*" --include "*.js.metadata" --recursive --content-type="text/javascript" --metadata-directive="REPLACE" s3://shinylive.io/r/shinylive/webr/ s3://shinylive.io/r/shinylive/webr/
-          aws s3 cp --content-encoding="gzip" --content-type="application/wasm" --metadata-directive="REPLACE" _shinylive/r/shinylive/webr/library.data.gz s3://shinylive.io/r/shinylive/webr/library.data
+          aws s3 cp --content-encoding="gzip" --content-type="application/wasm" --metadata-directive="REPLACE" _shinylive/r/shinylive/webr/R.bin.wasm.gz s3://shinylive.io/r/shinylive/webr/R.bin.wasm
           aws cloudfront create-invalidation --distribution-id $AWS_CLOUDFRONT_DISTRIBUTION_ID --paths "/*"
 
       # =====================================================
diff --git a/Makefile b/Makefile
index 1362ca4e..00f46a78 100644
--- a/Makefile
+++ b/Makefile
@@ -143,7 +143,7 @@ $(BUILD_DIR)/shinylive/webr: webr
 webr:
 	mkdir -p $(BUILD_DIR)/shinylive/webr
 	cp -r node_modules/webr/dist/. $(BUILD_DIR)/shinylive/webr
-	curl --fail -L https://github.com/r-wasm/shiny/releases/download/v$(R_SHINY_VERSION)/library.data -o $(BUILD_DIR)/shinylive/webr/library.data
+	curl --fail -L https://github.com/r-wasm/shiny/releases/download/v$(R_SHINY_VERSION)/library.data.gz -o $(BUILD_DIR)/shinylive/webr/library.data.gz
 	curl --fail -L https://github.com/r-wasm/shiny/releases/download/v$(R_SHINY_VERSION)/library.js.metadata -o $(BUILD_DIR)/shinylive/webr/library.js.metadata
 # FIXME: GitHub Pages does not cache Partial Content downloads. Here, we reduce
 # the damage by forcing entire file downloads with Emscripten's lazy filesystem.
diff --git a/package-lock.json b/package-lock.json
index 7b653845..e03e126f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8,9 +8,6 @@
       "name": "shinylive",
       "version": "0.5.0",
       "license": "MIT",
-      "dependencies": {
-        "@codemirror/lang-sql": "^6.7.0"
-      },
       "devDependencies": {
         "@codemirror/autocomplete": "^6.4.2",
         "@codemirror/commands": "6.2.1",
@@ -18,6 +15,7 @@
         "@codemirror/lang-html": "^6.4.2",
         "@codemirror/lang-javascript": "^6.1.4",
         "@codemirror/lang-python": "^6.1.1",
+        "@codemirror/lang-sql": "^6.7.0",
         "@codemirror/language": "^6.6.0",
         "@codemirror/legacy-modes": "^6.3.1",
         "@codemirror/lint": "^6.1.1",
@@ -68,7 +66,7 @@
         "tsx": "^4.7.0",
         "typescript": "^5.3.3",
         "vscode-languageserver-protocol": "^3.17.5",
-        "webr": "^0.4.0",
+        "webr": "^0.4.1",
         "xterm": "^5.3.0",
         "xterm-addon-fit": "^0.7.0",
         "xterm-readline": "^1.1.1"
@@ -752,6 +750,7 @@
       "version": "6.11.1",
       "resolved": "https://registry.npmjs.org/@codemirror/autocomplete/-/autocomplete-6.11.1.tgz",
       "integrity": "sha512-L5UInv8Ffd6BPw0P3EF7JLYAMeEbclY7+6Q11REt8vhih8RuLreKtPy/xk8wPxs4EQgYqzI7cdgpiYwWlbS/ow==",
+      "dev": true,
       "dependencies": {
         "@codemirror/language": "^6.0.0",
         "@codemirror/state": "^6.0.0",
@@ -837,6 +836,7 @@
       "version": "6.7.0",
       "resolved": "https://registry.npmjs.org/@codemirror/lang-sql/-/lang-sql-6.7.0.tgz",
       "integrity": "sha512-KMXp6rtyPYz6RaElvkh/77ClEAoQoHRPZo0zutRRialeFs/B/X8YaUJBCnAV2zqyeJPLZ4hgo48mG8TKoNXfZA==",
+      "dev": true,
       "dependencies": {
         "@codemirror/autocomplete": "^6.0.0",
         "@codemirror/language": "^6.0.0",
@@ -850,6 +850,7 @@
       "version": "6.9.3",
       "resolved": "https://registry.npmjs.org/@codemirror/language/-/language-6.9.3.tgz",
       "integrity": "sha512-qq48pYzoi6ldYWV/52+Z9Ou6QouVI+8YwvxFbUypI33NbjG2UeRHKENRyhwljTTiOqjQ33FjyZj6EREQ9apAOQ==",
+      "dev": true,
       "dependencies": {
         "@codemirror/state": "^6.0.0",
         "@codemirror/view": "^6.0.0",
@@ -893,12 +894,14 @@
     "node_modules/@codemirror/state": {
       "version": "6.3.2",
       "resolved": "https://registry.npmjs.org/@codemirror/state/-/state-6.3.2.tgz",
-      "integrity": "sha512-5jEikOfU0r9y+OTlZn5AEQB15mibu3deLBUp+GnLzVUNezEEuPt/JdSeniQNi+0YviblAvOPO2JQAlgJ3SYYaA=="
+      "integrity": "sha512-5jEikOfU0r9y+OTlZn5AEQB15mibu3deLBUp+GnLzVUNezEEuPt/JdSeniQNi+0YviblAvOPO2JQAlgJ3SYYaA==",
+      "dev": true
     },
     "node_modules/@codemirror/view": {
       "version": "6.22.1",
       "resolved": "https://registry.npmjs.org/@codemirror/view/-/view-6.22.1.tgz",
       "integrity": "sha512-38BRn1nPqZqiHbmWfI8zri23IbRVbmSpSmh1E/Ysvc+lIGGdBC17K8zlK7ZU6fhfy9x4De9Zyj5JQqScPq5DkA==",
+      "dev": true,
       "dependencies": {
         "@codemirror/state": "^6.1.4",
         "style-mod": "^4.1.0",
@@ -2083,7 +2086,8 @@
     "node_modules/@lezer/common": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/@lezer/common/-/common-1.2.1.tgz",
-      "integrity": "sha512-yemX0ZD2xS/73llMZIK6KplkjIjf2EvAHcinDi/TfJ9hS25G0388+ClHt6/3but0oOxinTcQHJLDXh6w1crzFQ=="
+      "integrity": "sha512-yemX0ZD2xS/73llMZIK6KplkjIjf2EvAHcinDi/TfJ9hS25G0388+ClHt6/3but0oOxinTcQHJLDXh6w1crzFQ==",
+      "dev": true
     },
     "node_modules/@lezer/css": {
       "version": "1.1.4",
@@ -2099,6 +2103,7 @@
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/@lezer/highlight/-/highlight-1.2.0.tgz",
       "integrity": "sha512-WrS5Mw51sGrpqjlh3d4/fOwpEV2Hd3YOkp9DBt4k8XZQcoTHZFB7sx030A6OcahF4J1nDQAa3jXlTVVYH50IFA==",
+      "dev": true,
       "dependencies": {
         "@lezer/common": "^1.0.0"
       }
@@ -2128,6 +2133,7 @@
       "version": "1.3.14",
       "resolved": "https://registry.npmjs.org/@lezer/lr/-/lr-1.3.14.tgz",
       "integrity": "sha512-z5mY4LStlA3yL7aHT/rqgG614cfcvklS+8oFRFBYrs4YaWLJyKKM4+nN6KopToX0o9Hj6zmH6M5kinOYuy06ug==",
+      "dev": true,
       "dependencies": {
         "@lezer/common": "^1.0.0"
       }
@@ -9256,7 +9262,8 @@
     "node_modules/style-mod": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/style-mod/-/style-mod-4.1.0.tgz",
-      "integrity": "sha512-Ca5ib8HrFn+f+0n4N4ScTIA9iTOQ7MaGS1ylHcoVqW9J7w2w8PzN6g9gKmTYgGEBH8e120+RCmhpje6jC5uGWA=="
+      "integrity": "sha512-Ca5ib8HrFn+f+0n4N4ScTIA9iTOQ7MaGS1ylHcoVqW9J7w2w8PzN6g9gKmTYgGEBH8e120+RCmhpje6jC5uGWA==",
+      "dev": true
     },
     "node_modules/supports-color": {
       "version": "7.2.0",
@@ -10159,7 +10166,8 @@
     "node_modules/w3c-keyname": {
       "version": "2.2.8",
       "resolved": "https://registry.npmjs.org/w3c-keyname/-/w3c-keyname-2.2.8.tgz",
-      "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ=="
+      "integrity": "sha512-dpojBhNsCNN7T82Tm7k26A6G9ML3NkhDsnw9n/eoxSRlVBB4CEtIQ/KTCLI2Fwf3ataSXRhYFkQi3SlnFwPvPQ==",
+      "dev": true
     },
     "node_modules/w3c-xmlserializer": {
       "version": "2.0.0",
@@ -10192,9 +10200,9 @@
       }
     },
     "node_modules/webr": {
-      "version": "0.4.0",
-      "resolved": "https://registry.npmjs.org/webr/-/webr-0.4.0.tgz",
-      "integrity": "sha512-vDggYyMJHEv/X7mViz9kalFd56+D4fVwWREAVF+EqKVkyETNI/tFCOLdp+R16C1rhnMA/QMZvyXrcK/tb79WUA==",
+      "version": "0.4.1",
+      "resolved": "https://registry.npmjs.org/webr/-/webr-0.4.1.tgz",
+      "integrity": "sha512-BrLEhyCPU43ayzv5xnQsWnBbhtAeXte89HYkrA+rq1vX9byu5bJEovnJr0My4t250jGTMGKXsHhXKhVULHVnxg==",
       "dev": true,
       "dependencies": {
         "@codemirror/autocomplete": "^6.8.1",
@@ -10208,6 +10216,7 @@
         "jszip": "^3.10.1",
         "lezer-r": "^0.1.1",
         "lightningcss": "^1.21.5",
+        "pako": "^2.1.0",
         "prop-types": "^15.7.2",
         "react": "^18.2.0",
         "react-accessible-treeview": "^2.6.1",
@@ -10237,6 +10246,12 @@
         "@lezer/common": "^1.1.0"
       }
     },
+    "node_modules/webr/node_modules/pako": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/pako/-/pako-2.1.0.tgz",
+      "integrity": "sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug==",
+      "dev": true
+    },
     "node_modules/whatwg-encoding": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz",
diff --git a/package.json b/package.json
index 6c18c676..086b27d6 100644
--- a/package.json
+++ b/package.json
@@ -73,7 +73,7 @@
     "tsx": "^4.7.0",
     "typescript": "^5.3.3",
     "vscode-languageserver-protocol": "^3.17.5",
-    "webr": "^0.4.0",
+    "webr": "^0.4.1",
     "xterm": "^5.3.0",
     "xterm-addon-fit": "^0.7.0",
     "xterm-readline": "^1.1.1"