diff --git a/package-lock.json b/package-lock.json
index 77cc7d9..e4e557c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1995,30 +1995,30 @@
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     },
     "@stencila/executa": {
-      "version": "1.15.0",
-      "resolved": "https://registry.npmjs.org/@stencila/executa/-/executa-1.15.0.tgz",
-      "integrity": "sha512-AWI1L0vjTQwEvgbT/c1RJijNNyBZqBEmcYmaAn9Nndq6tyOtNMDNbne0ezUJzAyb8ntQVZW8BHfrABAcX9MY4Q==",
+      "version": "1.15.1",
+      "resolved": "https://registry.npmjs.org/@stencila/executa/-/executa-1.15.1.tgz",
+      "integrity": "sha512-MxBzdLaT4Cb3lIDXy4zxBqACixFtFtirRUReePLxMa1HCGeqOOglmGlYt3/2tLmGq8Z1c9spJ9SUHZdnxDH+tA==",
       "requires": {
         "@stencila/configa": "^0.4.8",
-        "@stencila/logga": "^3.0.0",
-        "@stencila/schema": "^0.46.2",
-        "@types/ws": "7.2.7",
-        "ajv": "^6.12.5",
+        "@stencila/logga": "^3.0.1",
+        "@stencila/schema": "^0.46.5",
+        "@types/ws": "7.2.9",
+        "ajv": "^6.12.6",
         "chalk": "^4.1.0",
         "cli-highlight": "^2.1.4",
         "cross-fetch": "^3.0.6",
         "external-ip": "^2.3.1",
-        "fastify": "^3.4.1",
+        "fastify": "^3.7.0",
         "fastify-cors": "^4.1.0",
         "fastify-jwt": "^2.1.3",
-        "fastify-static": "^3.2.0",
+        "fastify-static": "^3.3.0",
         "globby": "^11.0.1",
         "historic-readline": "^1.0.8",
         "isomorphic-ws": "^4.0.1",
         "jmespath": "^0.15.0",
         "length-prefixed-stream": "^2.0.0",
         "mkdirp": "^1.0.4",
-        "nanoid": "^3.1.12",
+        "nanoid": "^3.1.16",
         "ora": "^5.1.0",
         "p-retry": "^4.2.0",
         "split2": "^3.2.2",
@@ -2279,9 +2279,9 @@
       "dev": true
     },
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-      "version": "7.2.7",
-      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-7.2.7.tgz",
-      "integrity": "sha512-UUFC/xxqFLP17hTva8/lVT0SybLUrfSD9c+iapKb0fEiC8uoDbA+xuZ3pAN603eW+bY8ebSMLm9jXdIPnD0ZgA==",
+      "version": "7.2.9",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-7.2.9.tgz",
+      "integrity": "sha512-gmXYAXr7G4BrRMnkGQGkGonc3ArVro9VZd//C1uns/qqsJyl2dxaJdlPMhZbcq5MTxFFC+ttFWtHSfVW5+hlRA==",
       "requires": {
         "@types/node": "*"
       }
@@ -6785,9 +6785,9 @@
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-      "version": "10.3.1",
-      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.3.1.tgz",
-      "integrity": "sha512-jeW8rdPdhshYKObedYg5XGbpVgb1/DT4AHvDFXhkU7UnGSIjy9kkJ7zHG7qplhFHMitTSzh5/iClKQk3Kb2RFQ=="
+      "version": "10.3.2",
+      "resolved": "https://registry.npmjs.org/highlight.js/-/highlight.js-10.3.2.tgz",
+      "integrity": "sha512-3jRT7OUYsVsKvukNKZCtnvRcFyCJqSEIuIMsEybAXRiFSwpt65qjPd/Pr+UOdYt7WJlt+lj3+ypUsHiySBp/Jw=="
     },
     "historic-readline": {
       "version": "1.0.8",
@@ -10056,9 +10056,9 @@
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     },
     "nanoid": {
-      "version": "3.1.15",
-      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.15.tgz",
-      "integrity": "sha512-n8rXUZ8UU3lV6+43atPrSizqzh25n1/f00Wx1sCiE7R1sSHytZLTTiQl8DjC4IDLOnEZDlgJhy0yO4VsIpMxow=="
+      "version": "3.1.16",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.16.tgz",
+      "integrity": "sha512-+AK8MN0WHji40lj8AEuwLOvLSbWYApQpre/aFJZD71r43wVRLrOYS4FmJOPQYon1TqB462RzrrxlfA74XRES8w=="
     },
     "nanomatch": {
       "version": "1.2.13",
@@ -14689,9 +14689,9 @@
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     },
     "queue-microtask": {
-      "version": "1.1.4",
-      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.1.4.tgz",
-      "integrity": "sha512-eY/4Obve9cE5FK8YvC1cJsm5cr7XvAurul8UtBDJ2PR1p5NmAwHtvAt5ftcLtwYRCUKNhxCneZZlxmUDFoSeKA=="
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.0.tgz",
+      "integrity": "sha512-J95OVUiS4b8qqmpqhCodN8yPpHG2mpZUPQ8tDGyIY0VhM+kBHszOuvsMJVGNQ1OH2BnTFbqz45i+2jGpDw9H0w=="
     },
     "queuefy": {
       "version": "1.1.2",
diff --git a/package.json b/package.json
index 0fde892..34b31e7 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "typescript": "4.0.5"
   },
   "dependencies": {
-    "@stencila/executa": "^1.15.0",
+    "@stencila/executa": "^1.15.1",
     "jmp": "^2.0.0",
     "kernelspecs": "^2.0.0",
     "spawnteract": "^5.0.1"