diff --git a/bin/Pipfile b/bin/Pipfile
deleted file mode 100644
index fa01656..0000000
--- a/bin/Pipfile
+++ /dev/null
@@ -1,13 +0,0 @@
-[[source]]
-url = "https://pypi.org/simple"
-verify_ssl = true
-name = "pypi"
-
-[packages]
-opencc = "*"
-click = "*"
-
-[dev-packages]
-
-[requires]
-python_version = "3.6"
diff --git a/bin/Pipfile.lock b/bin/Pipfile.lock
deleted file mode 100644
index 2cca78b..0000000
--- a/bin/Pipfile.lock
+++ /dev/null
@@ -1,47 +0,0 @@
-{
-    "_meta": {
-        "hash": {
-            "sha256": "e11e067f853c70dd2660c4e3d606219472ef597161bcf00ffcd63872df1183bf"
-        },
-        "pipfile-spec": 6,
-        "requires": {
-            "python_version": "3.6"
-        },
-        "sources": [
-            {
-                "name": "pypi",
-                "url": "https://pypi.org/simple",
-                "verify_ssl": true
-            }
-        ]
-    },
-    "default": {
-        "click": {
-            "hashes": [
-                "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a",
-                "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"
-            ],
-            "index": "pypi",
-            "version": "==7.1.2"
-        },
-        "opencc": {
-            "hashes": [
-                "sha256:071939024231edc9eab8243555671f8def23bde978dcdbe01fa747701aba5dc3",
-                "sha256:287b42a7011fdfb10a07ba8a2f50b50c13b408f2834544c64e37f147a04a4e74",
-                "sha256:31d08223a53422884546ac81f81ad41a696c926c0b1b5ac2167c9a975352c7e0",
-                "sha256:607d1082e3c9bfd618b59b39046da72d3571f74271d85f8b1cd1ea4ebb2ceb7b",
-                "sha256:82e76828df3bd3c7e450de2bb7eafb738692225fdcce4150f3d7cb5ff7871f9e",
-                "sha256:8aefe6b6097f3696444d2e753c64663756597fddd4aa8d120a06f2ab124551ab",
-                "sha256:8d47dcd65c2f322b3153882bdea88b8cbc45faec1f5ea7b1a044a523f02afac7",
-                "sha256:95eba60ce376aef96666650abb5e08e8ac5b97fd77e35a2b652609229a901865",
-                "sha256:9af690749eceef1dba21eac9d167c98fadc834dfabdb404b38b0438fc8444df8",
-                "sha256:e2fd8b96ee02f134bf8b8b6828b058d514446d723a8a1593db526eaefb1aeaca",
-                "sha256:e3abe5926f45d83a77f888d0fe38924407ffa7d04812aa577a2eab2db7b97a1c",
-                "sha256:fefebdc24ca8eb2656103d101a21639e9759c5e54012c355805a9cdf85bb4eda"
-            ],
-            "index": "pypi",
-            "version": "==1.1.2"
-        }
-    },
-    "develop": {}
-}