diff --git a/package.json b/package.json
index ecd33d6..08de1fc 100644
--- a/package.json
+++ b/package.json
@@ -31,9 +31,7 @@
     "pretest": "yarn check-types",
     "prepublishOnly": "yarn build",
     "test:unit": "nyc --cache-dir .nyc_output/.cache -r lcov -e .ts mocha --colors -r ts-node/register 'test/unit/**/*.test.ts' && nyc report",
-    "test:spec": "mocha --colors -r ts-node/register 'test/spec/**/*.test.ts'",
-    "test:spec-min": "yarn run test:spec",
-    "test": "yarn test:unit && yarn test:spec",
+    "test": "yarn test:unit",
     "coverage": "codecov -F bls",
     "benchmark": "node -r ./.babel-register test/benchmarks"
   },
diff --git a/test/spec/aggregate_pubkeys.test.ts b/test/spec/aggregate_pubkeys.test.ts
deleted file mode 100644
index 020402a..0000000
--- a/test/spec/aggregate_pubkeys.test.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import bls, {initBLS} from "../../src";
-import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-import path from "path";
-
-interface IAggregatePubKeysTestCase {
-  data: {
-    input: string[];
-    output: string;
-  };
-}
-
-before(async function f() {
-  await initBLS();
-});
-
-describeDirectorySpecTest<IAggregatePubKeysTestCase, string>(
-  "aggregate pubkeys",
-  path.join(
-    __dirname,
-    "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/aggregate_pubkeys/small"
-  ),
-  (testCase => {
-    const result =  bls.aggregatePubkeys(testCase.data.input.map(pubKey => {
-      return Buffer.from(pubKey.replace("0x", ""), "hex");
-    }));
-    return `0x${result.toString("hex")}`;
-  }),
-  {
-    inputTypes: {
-      data: InputType.YAML,
-    },
-    getExpected: (testCase => testCase.data.output)
-  }
-);
diff --git a/test/spec/aggregate_sigs.test.ts b/test/spec/aggregate_sigs.test.ts
deleted file mode 100644
index e7b63ab..0000000
--- a/test/spec/aggregate_sigs.test.ts
+++ /dev/null
@@ -1,34 +0,0 @@
-import path from "path";
-import bls, {initBLS} from "../../src";
-import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-
-interface AggregateSigsTestCase {
-  data: {
-    input: string[];
-    output: string;
-  };
-}
-
-before(async function f() {
-  await initBLS();
-});
-
-describeDirectorySpecTest<AggregateSigsTestCase, string>(
-  "aggregate sigs",
-  path.join(
-    __dirname,
-    "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/aggregate_sigs/small"
-  ),
-  (testCase => {
-    const result =  bls.aggregateSignatures(testCase.data.input.map(pubKey => {
-      return Buffer.from(pubKey.replace("0x", ""), "hex");
-    }));
-    return `0x${result.toString("hex")}`;
-  }),
-  {
-    inputTypes: {
-      data: InputType.YAML,
-    },
-    getExpected: (testCase => testCase.data.output)
-  }
-);
diff --git a/test/spec/msg_hash_compressed.test.ts b/test/spec/msg_hash_compressed.test.ts
deleted file mode 100644
index 56a65dc..0000000
--- a/test/spec/msg_hash_compressed.test.ts
+++ /dev/null
@@ -1,38 +0,0 @@
-import path from "path";
-import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-import {PrivateKey} from "../../src";
-import {padLeft} from "../../src/helpers/utils";
-
-interface IMsgHHashCOmpressed {
-  data: {
-    input: {
-      message: string;
-      domain: string;
-    };
-    output: string[];
-  };
-}
-
-describeDirectorySpecTest<IMsgHHashCOmpressed, string>(
-  "msg_hash_compressed",
-  path.join(
-    __dirname,
-    "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/msg_hash_compressed/small"
-  ),
-  (testCase => {
-    const domain = Buffer.from(testCase.data.input.domain.replace("0x", ""), "hex");
-    const input = Buffer.from(testCase.data.input.message.replace("0x", ""), "hex");
-    const result  = PrivateKey.fromInt(1).signMessage(input, domain).toBytesCompressed().toString("hex");
-    return `0x${result}`;
-  }),
-  {
-    inputTypes: {
-      data: InputType.YAML,
-    },
-    getExpected: (testCase => {
-      const xReExpected = padLeft(Buffer.from(testCase.data.output[0].replace("0x", ""), "hex"), 48);
-      const xImExpected = padLeft(Buffer.from(testCase.data.output[1].replace("0x", ""), "hex"), 48);
-      return "0x" + Buffer.concat([xReExpected, xImExpected]).toString("hex");
-    })
-  }
-);
\ No newline at end of file
diff --git a/test/spec/msg_hash_uncompressed.test.ts b/test/spec/msg_hash_uncompressed.test.ts
deleted file mode 100644
index 08de48f..0000000
--- a/test/spec/msg_hash_uncompressed.test.ts
+++ /dev/null
@@ -1,43 +0,0 @@
-// import path from "path";
-// import {padLeft} from "../../src/helpers/utils";
-// import {G2point} from "../../src/helpers/g2point";
-// import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-//
-// interface IMsgHHashUnCompressed {
-//   data: {
-//     input: {
-//       message: string;
-//       domain: string;
-//     };
-//     output: string[][];
-//   };
-// }
-//
-// describeDirectorySpecTest<IMsgHHashUnCompressed, string>(
-//   "msg_hash_uncompressed",
-//   path.join(
-//     __dirname,
-//     "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/msg_hash_uncompressed/small"
-//   ),
-//   (testCase => {
-//     const domain = padLeft(Buffer.from(testCase.data.input.domain.replace("0x", ""), "hex"), 8);
-//     const input = Buffer.from(testCase.data.input.message.replace("0x", ""), "hex");
-//     const result = G2point.hashToG2(input, domain);
-//     return `0x${result.toBytesCompressed().toString("hex")}`;
-//   }),
-//   {
-//     inputTypes: {
-//       data: InputType.YAML,
-//     },
-//     getExpected: (testCase => {
-//       return "0x" + G2point.fromUncompressedInput(
-//         Buffer.from(testCase.data.output[0][0].replace("0x", ""), "hex"),
-//         Buffer.from(testCase.data.output[0][1].replace("0x", ""), "hex"),
-//         Buffer.from(testCase.data.output[1][0].replace("0x", ""), "hex"),
-//         Buffer.from(testCase.data.output[1][1].replace("0x", ""), "hex"),
-//         Buffer.from(testCase.data.output[2][0].replace("0x", ""), "hex"),
-//         Buffer.from(testCase.data.output[2][1].replace("0x", ""), "hex"),
-//       ).toBytesCompressed().toString("hex");
-//     })
-//   }
-// );
\ No newline at end of file
diff --git a/test/spec/priv_to_public.test.ts b/test/spec/priv_to_public.test.ts
deleted file mode 100644
index f21bc13..0000000
--- a/test/spec/priv_to_public.test.ts
+++ /dev/null
@@ -1,32 +0,0 @@
-import bls, {initBLS} from "../../src";
-import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-import path from "path";
-
-interface IPrivToPubTestCase {
-  data: {
-    input: string;
-    output: string;
-  };
-}
-
-before(async function f() {
-  await initBLS();
-});
-
-describeDirectorySpecTest<IPrivToPubTestCase, string>(
-  "priv_to_pub",
-  path.join(
-    __dirname,
-    "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/priv_to_pub/small"
-  ),
-  (testCase => {
-    const result =  bls.generatePublicKey(Buffer.from(testCase.data.input.replace("0x", ""), "hex"));
-    return `0x${result.toString("hex")}`;
-  }),
-  {
-    inputTypes: {
-      data: InputType.YAML,
-    },
-    getExpected: (testCase => testCase.data.output)
-  }
-);
diff --git a/test/spec/sign_message.test.ts b/test/spec/sign_message.test.ts
deleted file mode 100644
index b1a34a8..0000000
--- a/test/spec/sign_message.test.ts
+++ /dev/null
@@ -1,41 +0,0 @@
-import path from "path";
-import bls, {initBLS} from "../../src";
-import {padLeft} from "../../src/helpers/utils";
-import {describeDirectorySpecTest, InputType} from "@chainsafe/eth2.0-spec-test-util/lib/single";
-
-interface ISignMessageTestCase {
-  data: {
-    input: {
-      privkey: string;
-      message: string;
-      domain: string;
-    };
-    output: string;
-  };
-}
-
-before(async function f() {
-  await initBLS();
-});
-
-describeDirectorySpecTest<ISignMessageTestCase, string>(
-  "priv_to_pub",
-  path.join(
-    __dirname,
-    "../../../../node_modules/@chainsafe/eth2-spec-tests/tests/general/phase0/bls/sign_msg/small"
-  ),
-  (testCase => {
-    const signature =  bls.sign(
-      Buffer.from(testCase.data.input.privkey.replace("0x", ""), "hex"),
-      Buffer.from(testCase.data.input.message.replace("0x", ""), "hex"),
-      padLeft(Buffer.from(testCase.data.input.domain.replace("0x", ""), "hex"), 8)
-    );
-    return `0x${signature.toString("hex")}`;
-  }),
-  {
-    inputTypes: {
-      data: InputType.YAML,
-    },
-    getExpected: (testCase => testCase.data.output)
-  }
-);
\ No newline at end of file