diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3d2a451..45189fc 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -30,11 +30,9 @@ jobs:
       - name: Install dependencies
         run: yarn --frozen-lockfile --prefer-offline
 
-      - name: Type check
-        run: yarn type-check
+      - run: yarn type-check
 
-      - name: End to end tests
-        run: yarn e2e
+      - run: yarn test
         env:
           GITHUB_INTROSPECTION_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           GITHUB_E2E_TESTS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/jest.config.js b/jest.config.js
deleted file mode 100644
index 308ce77..0000000
--- a/jest.config.js
+++ /dev/null
@@ -1,5 +0,0 @@
-module.exports = {
-  preset: "ts-jest",
-  testEnvironment: "node",
-  setupFiles: ["dotenv-flow/config"],
-};
diff --git a/package.json b/package.json
index 9713911..7806313 100644
--- a/package.json
+++ b/package.json
@@ -12,8 +12,8 @@
     "type-check": "tsc --noEmit",
     "dev": "yarn codegen --watch",
     "build": "rm -rf ./dist && yarn tsc --project tsconfig.build.json",
-    "e2e": "yarn codegen && yarn jest --testPathPattern=e2e",
-    "prepublishOnly": "yarn e2e",
+    "test": "yarn codegen && yarn jest",
+    "prepublishOnly": "yarn test",
     "debug": "node -r dotenv-flow/config src/tmp/debug.js",
     "docs": "typedoc src --readme none --githubPages false",
     "prepare": "simple-git-hooks"
@@ -24,6 +24,16 @@
   "nano-staged": {
     "*.{ts,css,md}": "prettier --write"
   },
+  "jest": {
+    "preset": "ts-jest",
+    "setupFiles": [
+      "dotenv-flow/config"
+    ],
+    "testPathIgnorePatterns": [
+      "/node_modules/",
+      "/dist/"
+    ]
+  },
   "files": [
     "package.json",
     "README.md",
@@ -32,8 +42,8 @@
   "dependencies": {
     "classnames": "^2.3.1",
     "code-tag": "^1.1.0",
-    "gray-matter": "^4.0.2",
-    "undici": "^5.22.1"
+    "undici": "^5.22.1",
+    "yaml": "^2.3.1"
   },
   "devDependencies": {
     "@graphql-codegen/cli": "^4.0.1",
diff --git a/src/datatypes/Post.ts b/src/datatypes/Post.ts
index 63ddb77..1ed91b1 100644
--- a/src/datatypes/Post.ts
+++ b/src/datatypes/Post.ts
@@ -1,7 +1,7 @@
-import matter from "gray-matter";
 import { gql } from "code-tag";
 import { createDataType } from "../core/datatype";
 import { Post_IssueFragment } from "../types";
+import { frontmatter } from "../utils/frontmatter";
 
 import { Reactions } from "./Reactions";
 import { Labels } from "./Labels";
@@ -50,7 +50,7 @@ export const Post = createDataType<PostInput, Post>({
     }
   `,
   translator: (issue) => {
-    const { data, content } = matter(issue.body);
+    const { data, content } = frontmatter(issue.body);
 
     return {
       id: issue.id,
diff --git a/src/utils/frontmatter.test.ts b/src/utils/frontmatter.test.ts
new file mode 100644
index 0000000..4747dcb
--- /dev/null
+++ b/src/utils/frontmatter.test.ts
@@ -0,0 +1,42 @@
+import { frontmatter } from "./frontmatter";
+
+const someYaml = "---\nkey: value\nlist:\n  - 1\n  - 2\n---";
+const someData = { key: "value", list: [1, 2] };
+const doc = "Here is a document\nMore of the document\nOther lines\n";
+const both = someYaml + "\n" + doc;
+
+test("should parse and strip frontmatter", () => {
+  expect(frontmatter(both)).toEqual({
+    data: someData,
+    content: doc,
+  });
+});
+
+test("should support no matter", () => {
+  expect(frontmatter(doc)).toEqual({
+    data: {},
+    content: doc,
+  });
+});
+
+test("should strip matter completely", () => {
+  expect(frontmatter(someYaml)).toEqual({
+    data: someData,
+    content: "",
+  });
+});
+
+test("should handle thematic breaks", () => {
+  const extra = "Here is a thematic break\n---\nEnd";
+  expect(frontmatter(both + extra)).toEqual({
+    data: someData,
+    content: doc + extra,
+  });
+});
+
+test("should support additional newline before closing matter", () => {
+  expect(frontmatter("---\nkey: value\n\n---\n" + doc)).toEqual({
+    data: { key: "value" },
+    content: doc,
+  });
+});
diff --git a/src/utils/frontmatter.ts b/src/utils/frontmatter.ts
new file mode 100644
index 0000000..76b463e
--- /dev/null
+++ b/src/utils/frontmatter.ts
@@ -0,0 +1,17 @@
+// inspired by https://github.com/vfile/vfile-matter
+
+import { parse } from "yaml";
+
+export const frontmatter = (content: string) => {
+  const match = /^---(?:\r?\n|\r)(?:([\s\S]*?)(?:\r?\n|\r))?---(?:\r?\n|\r|$)/.exec(content);
+  if (match) {
+    return {
+      data: parse(match[1]),
+      content: content.slice(match[0].length),
+    };
+  }
+  return {
+    data: {},
+    content,
+  };
+};
diff --git a/tsconfig.json b/tsconfig.json
index 3835588..bbb111e 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -10,7 +10,6 @@
     "esModuleInterop": true,
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "outDir": "./dist",
-    "baseUrl": "./src"
+    "outDir": "./dist"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 265a9db..d1d1a7e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2765,13 +2765,6 @@ expect@^29.0.0, expect@^29.5.0:
     jest-message-util "^29.5.0"
     jest-util "^29.5.0"
 
-extend-shallow@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
-  integrity sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=
-  dependencies:
-    is-extendable "^0.1.0"
-
 external-editor@^3.0.3:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/external-editor/-/external-editor-3.1.0.tgz#cb03f740befae03ea4d283caed2741a83f335495"
@@ -3073,16 +3066,6 @@ graphql@^15.5.0:
   resolved "https://registry.yarnpkg.com/graphql/-/graphql-15.5.0.tgz#39d19494dbe69d1ea719915b578bf920344a69d5"
   integrity sha512-OmaM7y0kaK31NKG31q4YbD2beNYa6jBBKtMFT6gLYJljHLJr42IqJ8KX08u3Li/0ifzTU5HjmoOOrwa5BRLeDA==
 
-gray-matter@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.2.tgz#9aa379e3acaf421193fce7d2a28cebd4518ac454"
-  integrity sha512-7hB/+LxrOjq/dd8APlK0r24uL/67w7SkYnfwhNFwg/VDIGWGmduTDYf3WNstLW2fbbmRwrDGCVSJ2isuf2+4Hw==
-  dependencies:
-    js-yaml "^3.11.0"
-    kind-of "^6.0.2"
-    section-matter "^1.0.0"
-    strip-bom-string "^1.0.0"
-
 handlebars@^4.7.7:
   version "4.7.7"
   resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
@@ -3277,11 +3260,6 @@ is-core-module@^2.2.0:
   dependencies:
     has "^1.0.3"
 
-is-extendable@^0.1.0:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
-  integrity sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik=
-
 is-extglob@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
@@ -3807,7 +3785,7 @@ jose@^4.11.4:
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
   integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
 
-js-yaml@^3.11.0, js-yaml@^3.13.1:
+js-yaml@^3.13.1:
   version "3.14.1"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.14.1.tgz#dae812fdb3825fa306609a8717383c50c36a0537"
   integrity sha512-okMH7OXXJ7YrN9Ok3/SXrnu4iX9yOk+25nqX4imS2npuvTYDmo/QEZoqwZkYaIDk3jVvBOTOIEgEhaLOynBS9g==
@@ -3884,11 +3862,6 @@ jsonify@~0.0.0:
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
   integrity sha1-LHS27kHZPKUbe1qu6PUDYx0lKnM=
 
-kind-of@^6.0.0, kind-of@^6.0.2:
-  version "6.0.3"
-  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.3.tgz#07c05034a6c349fa06e24fa35aa76db4580ce4dd"
-  integrity sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==
-
 kleur@^3.0.3:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/kleur/-/kleur-3.0.3.tgz#a79c9ecc86ee1ce3fa6206d1216c501f147fc07e"
@@ -4649,14 +4622,6 @@ scuid@^1.1.0:
   resolved "https://registry.yarnpkg.com/scuid/-/scuid-1.1.0.tgz#d3f9f920956e737a60f72d0e4ad280bf324d5dab"
   integrity sha512-MuCAyrGZcTLfQoH2XoBlQ8C6bzwN88XT/0slOGz0pn8+gIP85BOAfYa44ZXQUTOwRwPU0QvgU+V+OSajl/59Xg==
 
-section-matter@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/section-matter/-/section-matter-1.0.0.tgz#e9041953506780ec01d59f292a19c7b850b84167"
-  integrity sha512-vfD3pmTzGpufjScBh50YHKzEu2lxBWhVEHsNGoEXmCmn2hKGfeNLYMzCJpe8cD7gqX7TJluOVpBkAequ6dgMmA==
-  dependencies:
-    extend-shallow "^2.0.1"
-    kind-of "^6.0.0"
-
 semver@7.x, semver@^7.2.1:
   version "7.3.5"
   resolved "https://registry.yarnpkg.com/semver/-/semver-7.3.5.tgz#0b621c879348d8998e4b0e4be94b3f12e6018ef7"
@@ -4871,11 +4836,6 @@ strip-ansi@^6.0.1:
   dependencies:
     ansi-regex "^5.0.1"
 
-strip-bom-string@^1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/strip-bom-string/-/strip-bom-string-1.0.0.tgz#e5211e9224369fbb81d633a2f00044dc8cedad92"
-  integrity sha1-5SEekiQ2n7uB1jOi8ABE3IztrZI=
-
 strip-bom@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-4.0.0.tgz#9c3505c1db45bcedca3d9cf7a16f5c5aa3901878"
@@ -5301,6 +5261,11 @@ yaml@^1.10.0:
   resolved "https://registry.yarnpkg.com/yaml/-/yaml-1.10.2.tgz#2301c5ffbf12b467de8da2333a459e29e7920e4b"
   integrity sha512-r3vXyErRCYJ7wg28yvBY5VSoAF8ZvlcW9/BwUzEtUsjvX/DKs24dIkuwjtuprwJJHsbyUbLApepYTR1BN4uHrg==
 
+yaml@^2.3.1:
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/yaml/-/yaml-2.3.1.tgz#02fe0975d23cd441242aa7204e09fc28ac2ac33b"
+  integrity sha512-2eHWfjaoXgTBC2jNM1LRef62VQa0umtvRiDSk6HSzW7RvS5YtkabJrwYLLEKWBc8a5U2PTSCs+dJjUTJdlHsWQ==
+
 yargs-parser@^18.1.2:
   version "18.1.3"
   resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-18.1.3.tgz#be68c4975c6b2abf469236b0c870362fab09a7b0"