diff --git a/.travis.yml b/.travis.yml
index 91add93..9b4b81f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,7 +38,7 @@ jobs:
         - phone-gen --version
       after_success: false
 env:
-  - PHONENUMBERS="8.12.7"  # last version
+  - PHONENUMBERS="8.12.8"  # last version
 
 python:
   - "pypy3"
@@ -49,8 +49,8 @@ python:
   - "3.9-dev"
 install:
   - pip install phonenumbers==$PHONENUMBERS
-  - pip install pytest-cov==2.10.0
-  - pip install pytest==5.4.3
+  - pip install pytest-cov==2.10.1
+  - pip install pytest==6.0.1
   - pip install -e .
 script:
   - pip freeze | grep phonenumbers
diff --git a/Pipfile b/Pipfile
index 974fc85..a6ac869 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,15 +5,14 @@ verify_ssl = true
 
 [dev-packages]
 requests = "==2.24.0"
-pytest = "==5.4.3"
-pytest-cov = "==2.10.0"
-phonenumbers = "==8.12.7"
+pytest = "==6.0.1"
+pytest-cov = "==2.10.1"
+phonenumbers = "==8.12.8"
 black = "==19.10b0"
 flake8 = "==3.8.3"
 pep8-naming = "==0.11.1"
 
 [packages]
-phone-gen = {editable = true, path = "."}
 
 [requires]
 python_version = "3.8"
diff --git a/README.md b/README.md
index b77c575..8fe69c6 100644
--- a/README.md
+++ b/README.md
@@ -122,6 +122,7 @@ Need Python 3.6 or more.
 
 Changelog
 ----
+* **1.3.5** Updating patterns to libphonenumber v8.12.8
 * **1.3.4** Updating patterns to libphonenumber v8.12.7
 * **1.3.3** Updating patterns to libphonenumber v8.12.6
 * **1.3.2** Fix `MI` invalid pattern
diff --git a/phone_gen/patterns.py b/phone_gen/patterns.py
index 6ad2ef9..5d33a55 100644
--- a/phone_gen/patterns.py
+++ b/phone_gen/patterns.py
@@ -1,12 +1,12 @@
 # -*- coding: utf-8 -*-
 """
-Auto-generated file 2020-07-21 16:06:02 UTC
-Resource: https://github.com/google/libphonenumber v8.12.7
+Auto-generated file 2020-08-17 13:00:00 UTC
+Resource: https://github.com/google/libphonenumber v8.12.8
 """
 
 
 PATTERNS = {
-    "info": "libphonenumber v8.12.7",
+    "info": "libphonenumber v8.12.8",
     "data": {
         "AC": {"code": "247", "pattern": "((6[2-467][\\d]{3}))"},
         "AD": {"code": "376", "pattern": "(([78][\\d]{5}))"},
@@ -575,7 +575,7 @@
         },
         "PL": {
             "code": "48",
-            "pattern": "(((1[2-8])|(2[2-69])|(3[2-4])|(4[1-468])|(5[24-689])|(6[1-3578])|(7[14-7])|(8[1-79])|(9[145])([02-9][\\d]{6})|(1([0-8][\\d]{5})|(9[\\d]{3}([\\d]{2})?))))",
+            "pattern": "((47[\\d]{7})|((1[2-8])|(2[2-69])|(3[2-4])|(4[1-468])|(5[24-689])|(6[1-3578])|(7[14-7])|(8[1-79])|(9[145])([02-9][\\d]{6})|(1([0-8][\\d]{5})|(9[\\d]{3}([\\d]{2})?))))",
         },
         "PM": {"code": "508", "pattern": "(((4[1-3])|(50)[\\d]{4}))"},
         "PR": {"code": "1", "pattern": "(((787)|(939)[2-9][\\d]{6}))"},