diff --git a/yarn.lock b/yarn.lock
index dbf81d4412..b8c33da4aa 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -12,17 +12,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@agoric/babel-generator@npm:^7.17.6":
-  version: 7.17.6
-  resolution: "@agoric/babel-generator@npm:7.17.6"
-  dependencies:
-    "@babel/types": "npm:^7.17.0"
-    jsesc: "npm:^2.5.1"
-    source-map: "npm:^0.5.0"
-  checksum: 10c0/59db151ae737bd9b1f21c1589df4c7da9cbf484de5b5cc8352052825c2d977283d975303f55acb54d0210c176cb405da263073ceba1d3a6db65c6e21cc6e663f
-  languageName: node
-  linkType: hard
-
 "@babel/code-frame@npm:^7.0.0, @babel/code-frame@npm:^7.22.13, @babel/code-frame@npm:^7.23.5":
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   resolution: "@babel/code-frame@npm:7.23.5"
@@ -33,6 +22,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@babel/code-frame@npm:^7.25.9":
+  version: 7.26.0
+  resolution: "@babel/code-frame@npm:7.26.0"
+  dependencies:
+    "@babel/helper-validator-identifier": "npm:^7.25.9"
+    js-tokens: "npm:^4.0.0"
+    picocolors: "npm:^1.0.0"
+  checksum: 10c0/46f7e367714be736b52ea3c01b24f47e2102e210fb83021d1c8237d8fc511b9538909e16e2fcdbb5cb6173e0794e28624309a59014e52fcfb7bde908f5284388
+  languageName: node
+  linkType: hard
+
 "@babel/generator@npm:^7.23.6":
   version: 7.23.6
   resolution: "@babel/generator@npm:7.23.6"
@@ -45,6 +45,19 @@ __metadata:
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   linkType: hard
 
+"@babel/generator@npm:^7.25.9, @babel/generator@npm:~7.26.0":
+  version: 7.26.0
+  resolution: "@babel/generator@npm:7.26.0"
+  dependencies:
+    "@babel/parser": "npm:^7.26.0"
+    "@babel/types": "npm:^7.26.0"
+    "@jridgewell/gen-mapping": "npm:^0.3.5"
+    "@jridgewell/trace-mapping": "npm:^0.3.25"
+    jsesc: "npm:^3.0.2"
+  checksum: 10c0/b6bb9185f19a97eaf58e04a6d39a13237076678e7ed16b6321dea914535d4bf6a8d7727c9dcb65539845aa0096b326eb67be4bab764bd74bcfd848e2eda68609
+  languageName: node
+  linkType: hard
+
 "@babel/helper-environment-visitor@npm:^7.22.20":
   version: 7.22.20
   resolution: "@babel/helper-environment-visitor@npm:7.22.20"
@@ -80,10 +93,10 @@ __metadata:
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-"@babel/helper-string-parser@npm:^7.23.4":
-  version: 7.23.4
-  resolution: "@babel/helper-string-parser@npm:7.23.4"
-  checksum: 10c0/f348d5637ad70b6b54b026d6544bd9040f78d24e7ec245a0fc42293968181f6ae9879c22d89744730d246ce8ec53588f716f102addd4df8bbc79b73ea10004ac
+"@babel/helper-string-parser@npm:^7.25.9":
+  version: 7.25.9
+  resolution: "@babel/helper-string-parser@npm:7.25.9"
+  checksum: 10c0/7244b45d8e65f6b4338a6a68a8556f2cb161b782343e97281a5f2b9b93e420cad0d9f5773a59d79f61d0c448913d06f6a2358a87f2e203cf112e3c5b53522ee6
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@@ -94,6 +107,13 @@ __metadata:
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   linkType: hard
 
+"@babel/helper-validator-identifier@npm:^7.25.9":
+  version: 7.25.9
+  resolution: "@babel/helper-validator-identifier@npm:7.25.9"
+  checksum: 10c0/4fc6f830177b7b7e887ad3277ddb3b91d81e6c4a24151540d9d1023e8dc6b1c0505f0f0628ae653601eb4388a8db45c1c14b2c07a9173837aef7e4116456259d
+  languageName: node
+  linkType: hard
+
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   version: 7.23.4
   resolution: "@babel/highlight@npm:7.23.4"
@@ -114,6 +134,17 @@ __metadata:
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   linkType: hard
 
+"@babel/parser@npm:^7.25.9, @babel/parser@npm:^7.26.0, @babel/parser@npm:~7.26.1":
+  version: 7.26.1
+  resolution: "@babel/parser@npm:7.26.1"
+  dependencies:
+    "@babel/types": "npm:^7.26.0"
+  bin:
+    parser: ./bin/babel-parser.js
+  checksum: 10c0/dc7d4e6b7eb667fa0784e7e2c3f6f92ca12ad72242f6d4311995310dae55093f02acdb595b69b0dbbf04cb61ad87156ac03186ff32eacfa35149c655bc22c14b
+  languageName: node
+  linkType: hard
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   resolution: "@babel/template@npm:7.22.15"
@@ -125,7 +156,33 @@ __metadata:
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-"@babel/traverse@npm:^7.23.6, @babel/traverse@npm:^7.7.0":
+"@babel/template@npm:^7.25.9":
+  version: 7.25.9
+  resolution: "@babel/template@npm:7.25.9"
+  dependencies:
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+  checksum: 10c0/ebe677273f96a36c92cc15b7aa7b11cc8bc8a3bb7a01d55b2125baca8f19cae94ff3ce15f1b1880fb8437f3a690d9f89d4e91f16fc1dc4d3eb66226d128983ab
+  languageName: node
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+  resolution: "@babel/traverse@npm:7.25.9"
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+    "@babel/parser": "npm:^7.25.9"
+    "@babel/template": "npm:^7.25.9"
+    "@babel/types": "npm:^7.25.9"
+    debug: "npm:^4.3.1"
+    globals: "npm:^11.1.0"
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+  resolution: "@babel/types@npm:7.26.0"
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-    "@babel/helper-validator-identifier": "npm:^7.22.20"
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+    "@babel/helper-string-parser": "npm:^7.25.9"
+    "@babel/helper-validator-identifier": "npm:^7.25.9"
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-    "@babel/parser": "npm:^7.23.6"
-    "@babel/traverse": "npm:^7.23.6"
-    "@babel/types": "npm:^7.24.0"
+    "@babel/generator": "npm:~7.26.0"
+    "@babel/parser": "npm:~7.26.1"
+    "@babel/traverse": "npm:^7.25.9"
+    "@babel/types": "npm:~7.26.0"
     "@endo/ses-ava": "workspace:^"
     "@rollup/plugin-commonjs": "npm:^19.0.0"
     "@rollup/plugin-node-resolve": "npm:^13.0.0"
     "@types/babel__generator": "npm:^7.6.8"
-    "@types/babel__traverse": "npm:^7.20.5"
+    "@types/babel__traverse": "npm:^7.20.6"
     ava: "npm:^6.1.3"
     c8: "npm:^7.14.0"
     eslint: "npm:^8.57.0"
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   resolution: "@endo/module-source@workspace:packages/module-source"
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-    "@babel/parser": "npm:^7.23.6"
-    "@babel/traverse": "npm:^7.23.6"
-    "@babel/types": "npm:^7.24.0"
+    "@babel/generator": "npm:~7.26.0"
+    "@babel/parser": "npm:~7.26.1"
+    "@babel/traverse": "npm:^7.25.9"
+    "@babel/types": "npm:~7.26.0"
     ava: "npm:^6.1.3"
     babel-eslint: "npm:^10.1.0"
     benchmark: "npm:^2.1.4"
@@ -1099,6 +1155,17 @@ __metadata:
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   linkType: hard
 
+"@jridgewell/gen-mapping@npm:^0.3.5":
+  version: 0.3.5
+  resolution: "@jridgewell/gen-mapping@npm:0.3.5"
+  dependencies:
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+    "@jridgewell/sourcemap-codec": "npm:^1.4.10"
+    "@jridgewell/trace-mapping": "npm:^0.3.24"
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+  languageName: node
+  linkType: hard
+
 "@jridgewell/resolve-uri@npm:^3.1.0":
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   resolution: "@jridgewell/resolve-uri@npm:3.1.1"
@@ -1113,6 +1180,13 @@ __metadata:
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+"@jridgewell/set-array@npm:^1.2.1":
+  version: 1.2.1
+  resolution: "@jridgewell/set-array@npm:1.2.1"
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+  languageName: node
+  linkType: hard
+
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   resolution: "@jridgewell/source-map@npm:0.3.2"
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   linkType: hard
 
+"@jridgewell/trace-mapping@npm:^0.3.24, @jridgewell/trace-mapping@npm:^0.3.25":
+  version: 0.3.25
+  resolution: "@jridgewell/trace-mapping@npm:0.3.25"
+  dependencies:
+    "@jridgewell/resolve-uri": "npm:^3.1.0"
+    "@jridgewell/sourcemap-codec": "npm:^1.4.14"
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+  linkType: hard
+
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   resolution: "@lerna/create@npm:8.1.8"
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-"@types/babel__traverse@npm:^7.20.5":
-  version: 7.20.5
-  resolution: "@types/babel__traverse@npm:7.20.5"
+"@types/babel__traverse@npm:^7.20.6":
+  version: 7.20.6
+  resolution: "@types/babel__traverse@npm:7.20.6"
   dependencies:
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+"jsesc@npm:^3.0.2":
+  version: 3.0.2
+  resolution: "jsesc@npm:3.0.2"
+  bin:
+    jsesc: bin/jsesc
+  checksum: 10c0/ef22148f9e793180b14d8a145ee6f9f60f301abf443288117b4b6c53d0ecd58354898dc506ccbb553a5f7827965cd38bc5fb726575aae93c5e8915e2de8290e1
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   resolution: "json-parse-better-errors@npm:1.0.2"
@@ -8215,6 +8308,13 @@ __metadata:
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+"picocolors@npm:^1.0.0":
+  version: 1.1.1
+  resolution: "picocolors@npm:1.1.1"
+  checksum: 10c0/e2e3e8170ab9d7c7421969adaa7e1b31434f789afb9b3f115f6b96d91945041ac3ceb02e9ec6fe6510ff036bcc0bf91e69a1772edc0b707e12b19c0f2d6bcf58
+  languageName: node
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+
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-  resolution: "source-map@npm:0.5.7"
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-"to-fast-properties@npm:^2.0.0":
-  version: 2.0.0
-  resolution: "to-fast-properties@npm:2.0.0"
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   resolution: "to-regex-range@npm:5.0.1"