diff --git a/BUILD.yaml b/BUILD.yaml
new file mode 100755
index 0000000..2326a06
--- /dev/null
+++ b/BUILD.yaml
@@ -0,0 +1,54 @@
+#!node_modules/bajel/cli.js test
+
+TEST: ava test/contract_test.js
+
+serve:
+    deps:
+        - dist/index.cjs
+    exec: python -m SimpleHTTPServer 8888
+
+test:
+    deps:
+        - test_default
+        - test_contract_production
+        - test_contract_development
+        - test_contract_no_env
+
+test_default:
+    deps:
+        - dist/index.cjs
+    exec: ava
+
+test_contract_production:
+    exec: NODE_ENV=production $(TEST)
+
+test_contract_development:
+    exec: NODE_ENV=development $(TEST)
+
+test_contract_no_env:
+    exec: NODE_ENV=  $(TEST)
+
+"perf.csv":
+    deps:
+        - src/node/perf.js", "src/common/optimizer.js"]
+    exec: node $<
+
+"dist/index.cjs":
+    deps:
+        - rollup.config.js
+        - src/node/index.js
+        - src/common/index.js
+        - src/common/random.js
+        - src/common/color.js
+        - src/common/optimizer.js
+        - src/common/contract.js
+        - src/common/random.js
+    exec: rollup --config $<
+
+publish:
+    deps:
+        - dist/index.cjs
+    exec: npm publish
+
+clean:
+    exec: rm -rf dist
diff --git a/build.toml b/build.toml
deleted file mode 100755
index cdb4ed1..0000000
--- a/build.toml
+++ /dev/null
@@ -1,49 +0,0 @@
-#!node_modules/bajel/cli.js test
-[serve]
-deps = ["dist/index.cjs"]
-exec = "python -m SimpleHTTPServer 8888"
-
-[test]
-deps = [
-    "test_default",
-    "test_contract_production",
-    "test_contract_development",
-    "test_contract_no_env",
-]
-
-[test_default]
-deps = ["dist/index.cjs"]
-exec = "npx ava"
-
-[test_contract_production]
-exec = "NODE_ENV=production npx ava test/contract_test.js"
-
-[test_contract_development]
-exec = "NODE_ENV=development npx ava test/contract_test.js"
-
-[test_contract_no_env]
-exec = "NODE_ENV= npx ava test/contract_test.js"
-
-["perf.csv"]
-deps = ["src/node/perf.js", "src/common/optimizer.js"]
-exec = "node $<"
-
-["dist/index.cjs"]
-deps = [
-    "rollup.config.js",
-    "src/node/index.js",
-    "src/common/index.js",
-    "src/common/random.js",
-    "src/common/color.js",
-    "src/common/optimizer.js",
-    "src/common/contract.js",
-    "src/common/random.js",
-]
-exec = "npx rollup --config $<"
-
-[publish]
-deps = ["dist/index.cjs"]
-exec = "npm publish"
-
-[clean]
-exec = "rm -rf dist"
diff --git a/package-lock.json b/package-lock.json
index d00f5c8..fbd8814 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -406,16 +406,18 @@
       }
     },
     "bajel": {
-      "version": "0.3.7",
-      "resolved": "https://registry.npmjs.org/bajel/-/bajel-0.3.7.tgz",
-      "integrity": "sha512-tn+4YrgE7NdMYjbywpqfN2Jejn9zgoknHe8TzuV8aUteyobeTe13Zl5peaVvyHZPH0MWIgeHVDVGG9qvgLPTzg==",
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/bajel/-/bajel-1.0.0.tgz",
+      "integrity": "sha512-vkJ5wKI3uYh3pN0WkGpf2q6ehYCNL+MZ/NlZvRD3akJ7EonSOg75B1FF0rfxRZBvJXAVswYUgccECqY7vdk0sg==",
       "dev": true,
       "requires": {
         "getopts": "^2.2.5",
         "install": "^0.13.0",
         "js-yaml": "^3.13.1",
+        "passprint": "0.0.1",
         "remove": "^0.1.5",
         "semver": "^7.2.1",
+        "tmp": "^0.2.1",
         "toml": "^3.0.0"
       },
       "dependencies": {
@@ -1499,9 +1501,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.19",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
+      "version": "4.17.20",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.20.tgz",
+      "integrity": "sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==",
       "dev": true
     },
     "lodash.clonedeep": {
@@ -1883,6 +1885,12 @@
       "integrity": "sha512-kHt7kzLoS9VBZfUsiKjv43mr91ea+U05EyKkEtqp7vNbHxmaVuEqN7XxeEVnGrMtYOAxGrDElSi96K7EgO1zCA==",
       "dev": true
     },
+    "passprint": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/passprint/-/passprint-0.0.1.tgz",
+      "integrity": "sha512-+scrdoqoamGYMfXXGMxf410CgeEUI3EOaDe/QtVwZrd1FeaUz3XH8vs9UH6vZX/W/TGH/6/K/wTJqN+QsF1gcQ==",
+      "dev": true
+    },
     "path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
@@ -2475,6 +2483,15 @@
       "integrity": "sha1-mcW/VZWJZq9tBtg73zgA3IL67F0=",
       "dev": true
     },
+    "tmp": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
+      "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
+      "dev": true,
+      "requires": {
+        "rimraf": "^3.0.0"
+      }
+    },
     "to-readable-stream": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/to-readable-stream/-/to-readable-stream-1.0.0.tgz",
diff --git a/package.json b/package.json
index 8213d9a..73499b8 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "devDependencies": {
     "@rollup/plugin-node-resolve": "^7.1.3",
     "ava": "^3.7.1",
-    "bajel": "^0.3.7",
+    "bajel": "^1.0.0",
     "rollup": "^2.7.3",
     "rollup-plugin-terser": "^5.3.0"
   }