Require at least lxml==3.1

CHANGELOG.rst

@@ -23,6 +23,7 @@ Version 0.7.4
   content change is also necessary. See :gh:`257`.
 - :storage:`remotestorage` now automatically opens authentication dialogs in
   your configured GUI browser.
+- **Packagers:** ``lxml>=3.1`` is now required (newer lower-bound version).
 
 Version 0.7.3
 =============

Makefile

@@ -79,7 +79,7 @@ install-dev:
 	set -xe && if [ "$$REQUIREMENTS" = "devel" ]; then \
 	    pip install -U --force-reinstall git+https://github.com/kennethreitz/requests; \
 	elif [ "$$REQUIREMENTS" = "minimal" ]; then \
-		pip install -U --force-reinstall lxml==3.0 requests==2.4.1 requests_toolbelt==0.4.0 click==5.0; \
+		pip install -U --force-reinstall lxml==3.1 requests==2.4.1 requests_toolbelt==0.4.0 click==5.0; \
 	fi
 
 .PHONY: docs

setup.py

@@ -36,7 +36,7 @@ setup(
         'click-log',
         'click-threading',
         'requests != 2.9.0',
-        'lxml >=3.0, <=3.4.4',
+        'lxml >=3.1, <=3.4.4',
         # https://github.com/sigmavirus24/requests-toolbelt/pull/28
         'requests_toolbelt>=0.5.0',
         'atomicwrites'