diff --git a/esptool-2.6.tar.gz b/esptool-2.6.tar.gz
deleted file mode 100644
index b7a5710..0000000
--- a/esptool-2.6.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:51ebe169cade538c986e92eb65562b8ff3a1293baf14b9ad977df888061ed78e
-size 4336261
diff --git a/esptool-2.7.tar.gz b/esptool-2.7.tar.gz
new file mode 100644
index 0000000..0cbd0c1
--- /dev/null
+++ b/esptool-2.7.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9d3c9f6bc1e2a619c207ef33920aa0c8251584489f68a777dbc381e19f9679fb
+size 5396543
diff --git a/python-esptool.changes b/python-esptool.changes
index b0531d2..658d342 100644
--- a/python-esptool.changes
+++ b/python-esptool.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Fri Sep 13 07:57:08 UTC 2019 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Update to 2.7:
+  * New option write_flash --flash-size keep will keep whatever flash size is
+    set in the bootloader header
+  * write_flash no longer updates the flash header if the file being written
+    to the bootloader offset isn't a valid image file for the chip
+
 -------------------------------------------------------------------
 Thu Feb 28 01:47:40 UTC 2019 - John Vandenberg <jayvdb@gmail.com>
 
diff --git a/python-esptool.spec b/python-esptool.spec
index 48e8490..47b50fe 100644
--- a/python-esptool.spec
+++ b/python-esptool.spec
@@ -18,7 +18,7 @@
 
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 Name:           python-esptool
-Version:        2.6
+Version:        2.7
 Release:        0
 Summary:        A serial utility to communicate & flash code to Espressif ESP8266 & ESP32 chips
 License:        GPL-2.0-or-later
@@ -28,14 +28,15 @@ Source:         https://github.com/espressif/esptool/archive/v%{version}.tar.gz#
 BuildRequires:  %{python_module ecdsa}
 BuildRequires:  %{python_module pyaes}
 BuildRequires:  %{python_module pyelftools}
-BuildRequires:  %{python_module pyserial >= 2.5}
+BuildRequires:  %{python_module pyserial >= 3.0}
+BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module setuptools}
 BuildRequires:  fdupes
 BuildRequires:  openssl
 BuildRequires:  python-rpm-macros
 Requires:       python-ecdsa
 Requires:       python-pyaes
-Requires:       python-pyserial >= 2.5
+Requires:       python-pyserial >= 3.0
 BuildArch:      noarch
 
 %python_subpackages
@@ -48,7 +49,6 @@ Allows flashing firmware, reading back firmware, querying chip parameters, etc.
 %prep
 %setup -q -n esptool-%{version}
 rm -r ecdsa pyaes
-sed -i '/flake8/d' setup.py
 sed -i '/^#!/d' flasher_stub/*.py
 chmod a-x flasher_stub/*.py
 
@@ -64,7 +64,9 @@ chmod a-x flasher_stub/*.py
 %python_expand %fdupes %{buildroot}%{$python_sitelib}
 
 %check
-%python_exec setup.py test
+# there are more tests but upstream runs only those in .travis.yml
+%pytest test/test_imagegen.py
+%pytest test/test_espsecure.py
 
 %files %{python_files}
 %license LICENSE