diff --git a/.github/workflows/ci_browser.yml b/.github/workflows/ci_browser.yml
index ffb31a732..95e100ef0 100644
--- a/.github/workflows/ci_browser.yml
+++ b/.github/workflows/ci_browser.yml
@@ -17,7 +17,7 @@ jobs:
       - uses: denoland/setup-deno@004814556e37c54a2f6e31384c9e18e983317366
         with:
           deno-version: v1.x
-      - run: deno run -A dnt.ts 0.11.4
+      - run: deno task dnt
       - run: mkdir test/browser/src
       - run: cp npm/esm/*.js test/browser/src/
       - run: cp -rf npm/esm/src test/browser/src/
diff --git a/.github/workflows/ci_node.yml b/.github/workflows/ci_node.yml
index 3c60fb44a..9e6c13155 100644
--- a/.github/workflows/ci_node.yml
+++ b/.github/workflows/ci_node.yml
@@ -25,4 +25,4 @@ jobs:
         with:
           deno-version: v1.x
       - name: Run dnt
-        run: deno run -A dnt.ts 0.11.4
+        run: deno task dnt
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index b419bfea1..eb1e6161b 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -16,7 +16,7 @@ jobs:
       - uses: denoland/setup-deno@v1
         with:
           deno-version: v1.x
-      - run: deno run -A dnt.ts 0.11.4
+      - run: deno task dnt
       - working-directory: ./npm
         run: npm publish
         env:
diff --git a/CHANGES.md b/CHANGES.md
index f065f8f51..d0ffee90f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,12 @@
 
 ## Unreleased
 
+## Version 0.11.5
+
+Released 2022-06-18
+
+- [(#76) Add DHKEM(P-256, HKDF-SHA256) to Deno supported KEMs.](https://github.com/dajiaji/hpke-js/pull/78)
+
 ## Version 0.11.4
 
 Released 2022-06-11
diff --git a/README.md b/README.md
index 06c467b01..ceda339df 100644
--- a/README.md
+++ b/README.md
@@ -107,7 +107,7 @@ Using esm.sh:
 ```html
 <!-- use a specific version -->
 <script type="module">
-  import * as hpke from "https://esm.sh/hpke-js@0.11.4";
+  import * as hpke from "https://esm.sh/hpke-js@0.11.5";
   // ...
 </script>
 
@@ -123,7 +123,7 @@ Using unpkg:
 ```html
 <!-- use a specific version -->
 <script type="module">
-  import * as hpke from "https://unpkg.com/hpke-js@0.11.4/esm/mod.js";
+  import * as hpke from "https://unpkg.com/hpke-js@0.11.5/esm/mod.js";
   // ...
 </script>
 ```
@@ -148,7 +148,7 @@ Using deno.land:
 
 ```js
 // use a specific version
-import * as hpke from "https://deno.land/x/hpke@v0.11.4/mod.ts";
+import * as hpke from "https://deno.land/x/hpke@v0.11.5/mod.ts";
 
 // use the latest stable version
 import * as hpke from "https://deno.land/x/hpke/mod.ts";
@@ -167,8 +167,8 @@ Browsers:
   <head></head>
   <body>
     <script type="module">
-      // import * as hpke from "https://esm.sh/hpke-js@0.11.4";
-      import { Kem, Kdf, Aead, CipherSuite } from "https://esm.sh/hpke-js@0.11.4";
+      // import * as hpke from "https://esm.sh/hpke-js@0.11.5";
+      import { Kem, Kdf, Aead, CipherSuite } from "https://esm.sh/hpke-js@0.11.5";
 
       globalThis.doHpke = async () => {
 
@@ -253,7 +253,7 @@ doHpke();
 Deno:
 
 ```js
-import { Kem, Kdf, Aead, CipherSuite } from "https://deno.land/x/hpke@v0.11.4/mod.ts";
+import { Kem, Kdf, Aead, CipherSuite } from "https://deno.land/x/hpke@v0.11.5/mod.ts";
 
 async function doHpke() {
   // setup
diff --git a/deno.json b/deno.json
index 48fb95a9c..c3cbf5646 100644
--- a/deno.json
+++ b/deno.json
@@ -12,6 +12,7 @@
     }
   },
   "tasks": {
-    "test": "deno test test -A --fail-fast --doc --coverage=coverage --jobs --allow-read"
+    "test": "deno test test -A --fail-fast --doc --coverage=coverage --jobs --allow-read",
+    "dnt": "deno run -A dnt.ts 0.11.5"
   }
 }
diff --git a/samples/node/package.json b/samples/node/package.json
index 850381278..a6e3bd203 100644
--- a/samples/node/package.json
+++ b/samples/node/package.json
@@ -6,6 +6,6 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "hpke-js": "^0.11.4"
+    "hpke-js": "^0.11.5"
   }
 }
diff --git a/samples/ts-node/package.json b/samples/ts-node/package.json
index ac3f66600..52844e09e 100644
--- a/samples/ts-node/package.json
+++ b/samples/ts-node/package.json
@@ -6,7 +6,7 @@
   "author": "Ajitomi Daisuke <ajitomi@gmail.com> (https://github.com/dajiaji)",
   "license": "MIT",
   "dependencies": {
-    "hpke-js": "^0.11.4",
+    "hpke-js": "^0.11.5",
     "ts-node": "^10.7.0"
   }
 }
diff --git a/src/kemPrimitives/ec.ts b/src/kemPrimitives/ec.ts
index e25df9763..33744ddd4 100644
--- a/src/kemPrimitives/ec.ts
+++ b/src/kemPrimitives/ec.ts
@@ -215,7 +215,6 @@ export class Ec implements KemPrimitives {
         consts.KEM_USAGES,
       );
     } catch (_e: unknown) {
-      console.log(_e);
       throw new Error("Invalid key for the ciphersuite");
     }
   }
diff --git a/test/playwright/package-lock.json b/test/playwright/package-lock.json
new file mode 100644
index 000000000..7918fef8f
--- /dev/null
+++ b/test/playwright/package-lock.json
@@ -0,0 +1,70 @@
+{
+  "name": "playwright",
+  "lockfileVersion": 2,
+  "requires": true,
+  "packages": {
+    "": {
+      "devDependencies": {
+        "@playwright/test": "^1.22.2"
+      }
+    },
+    "node_modules/@playwright/test": {
+      "version": "1.22.2",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.22.2.tgz",
+      "integrity": "sha512-cCl96BEBGPtptFz7C2FOSN3PrTnJ3rPpENe+gYCMx4GNNDlN4tmo2D89y13feGKTMMAIVrXfSQ/UmaQKLy1XLA==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*",
+        "playwright-core": "1.22.2"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=14"
+      }
+    },
+    "node_modules/@types/node": {
+      "version": "17.0.42",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.42.tgz",
+      "integrity": "sha512-Q5BPGyGKcvQgAMbsr7qEGN/kIPN6zZecYYABeTDBizOsau+2NMdSVTar9UQw21A2+JyA2KRNDYaYrPB0Rpk2oQ==",
+      "dev": true
+    },
+    "node_modules/playwright-core": {
+      "version": "1.22.2",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.22.2.tgz",
+      "integrity": "sha512-w/hc/Ld0RM4pmsNeE6aL/fPNWw8BWit2tg+TfqJ3+p59c6s3B6C8mXvXrIPmfQEobkcFDc+4KirNzOQ+uBSP1Q==",
+      "dev": true,
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=14"
+      }
+    }
+  },
+  "dependencies": {
+    "@playwright/test": {
+      "version": "1.22.2",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.22.2.tgz",
+      "integrity": "sha512-cCl96BEBGPtptFz7C2FOSN3PrTnJ3rPpENe+gYCMx4GNNDlN4tmo2D89y13feGKTMMAIVrXfSQ/UmaQKLy1XLA==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*",
+        "playwright-core": "1.22.2"
+      }
+    },
+    "@types/node": {
+      "version": "17.0.42",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-17.0.42.tgz",
+      "integrity": "sha512-Q5BPGyGKcvQgAMbsr7qEGN/kIPN6zZecYYABeTDBizOsau+2NMdSVTar9UQw21A2+JyA2KRNDYaYrPB0Rpk2oQ==",
+      "dev": true
+    },
+    "playwright-core": {
+      "version": "1.22.2",
+      "resolved": "https://registry.npmjs.org/playwright-core/-/playwright-core-1.22.2.tgz",
+      "integrity": "sha512-w/hc/Ld0RM4pmsNeE6aL/fPNWw8BWit2tg+TfqJ3+p59c6s3B6C8mXvXrIPmfQEobkcFDc+4KirNzOQ+uBSP1Q==",
+      "dev": true
+    }
+  }
+}
