diff --git a/package-lock.json b/package-lock.json
index c639cb21e..cb0ddf1bc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9743,6 +9743,12 @@
         }
       }
     },
+    "google-closure-library": {
+      "version": "20190301.0.0",
+      "resolved": "https://registry.npmjs.org/google-closure-library/-/google-closure-library-20190301.0.0.tgz",
+      "integrity": "sha512-mpeszbnXpRhXZ0sPqUxBgUmk0RtmzrJRy3KFygp0Ih9JuRUjQTCLhwYQeIlK2vB2lShhY/KUo9E1Z1gvxDFxOQ==",
+      "dev": true
+    },
     "graceful-fs": {
       "version": "4.1.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.1.11.tgz",
@@ -15717,13 +15723,15 @@
       }
     },
     "scratch-blocks": {
-      "version": "0.1.0-prerelease.20210331033330",
-      "resolved": "https://registry.npmjs.org/scratch-blocks/-/scratch-blocks-0.1.0-prerelease.20210331033330.tgz",
-      "integrity": "sha512-7Z4R0vwBPr4fJHonj4PIlMhoNMxiDdJzLv0elBeVIqS/eblOkicilmkinTxSWdUdAifMHBTnMOUZmA3jF1+htA==",
+      "version": "0.1.0-prerelease.20210723050031",
+      "resolved": "https://registry.npmjs.org/scratch-blocks/-/scratch-blocks-0.1.0-prerelease.20210723050031.tgz",
+      "integrity": "sha512-Rg8Q7iWmTr08XNVeOP0pXxkrHH1jQ84ZRsflJ9Xh9RTreSyztx9PqZd0YRWfnSVy4a9En1+6KH/vzxAEVLbkBQ==",
       "dev": true,
       "requires": {
         "exports-loader": "0.6.3",
-        "imports-loader": "0.6.5"
+        "google-closure-library": "20190301.0.0",
+        "imports-loader": "0.6.5",
+        "scratch-l10n": "3.13.20210723031502"
       }
     },
     "scratch-l10n": {
diff --git a/package.json b/package.json
index 43f7dc205..da8997a42 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "lodash.defaultsdeep": "4.6.1",
     "pngjs": "3.3.3",
     "scratch-audio": "0.1.0-prerelease.20200528195344",
-    "scratch-blocks": "0.1.0-prerelease.20210331033330",
+    "scratch-blocks": "0.1.0-prerelease.20210723050031",
     "scratch-l10n": "3.13.20210723031502",
     "scratch-render": "0.1.0-prerelease.20210726234033",
     "scratch-render-fonts": "1.0.0-prerelease.20210401210003",