diff --git a/dev-vcs/mercurial/mercurial-4.8.1.recipe b/dev-vcs/mercurial/mercurial-4.9.1.recipe
similarity index 76%
rename from dev-vcs/mercurial/mercurial-4.8.1.recipe
rename to dev-vcs/mercurial/mercurial-4.9.1.recipe
index 2a5199adb..6fd645eea 100644
--- a/dev-vcs/mercurial/mercurial-4.8.1.recipe
+++ b/dev-vcs/mercurial/mercurial-4.9.1.recipe
@@ -2,12 +2,12 @@ SUMMARY="Free, distributed source control management tool"
 DESCRIPTION="Mercurial (hg) is a free, distributed source control management \
 tool."
 HOMEPAGE="https://www.mercurial-scm.org/"
-COPYRIGHT="2005-2018 Matt Mackall et al."
+COPYRIGHT="2005-2019 Matt Mackall et al."
 LICENSE="GNU GPL v2"
-REVISION="2"
-SOURCE_URI="https://www.mercurial-scm.org/release/mercurial-4.8.1.tar.gz"
-CHECKSUM_SHA256="48a45f5cde9104fbc2daf310d710d4ebf286d879b89fa327d24b005434b0fa21"
-PATCHES="mercurial-4.8.1.patch"
+REVISION="1"
+SOURCE_URI="https://www.mercurial-scm.org/release/mercurial-4.9.1.tar.gz"
+CHECKSUM_SHA256="1bdd21bb87d1e05fb5cd395d488d0e0cc2f2f90ce0fd248e31a03595da5ccb47"
+PATCHES="mercurial-4.9.1.patch"
 
 ARCHITECTURES="x86_gcc2 x86 x86_64"
 
diff --git a/dev-vcs/mercurial/patches/mercurial-4.8.1.patch b/dev-vcs/mercurial/patches/mercurial-4.8.1.patch
deleted file mode 100644
index eb635764b..000000000
--- a/dev-vcs/mercurial/patches/mercurial-4.8.1.patch
+++ /dev/null
@@ -1,40 +0,0 @@
-diff -ur mercurial-4.8.1-orig/contrib/python-zstandard/setup_zstd.py mercurial-4.8.1/contrib/python-zstandard/setup_zstd.py
---- mercurial-4.8.1-orig/contrib/python-zstandard/setup_zstd.py	2018-12-04 19:04:15.000000000 -0300
-+++ mercurial-4.8.1/contrib/python-zstandard/setup_zstd.py	2019-01-05 01:29:50.432396926 -0300
-@@ -159,8 +159,8 @@
-         extra_args.append('-DZDICTLIB_VISIBILITY=')
-         extra_args.append('-DZSTDERRORLIB_VISIBILITY=')
- 
--        if compiler_type == 'unix':
--            extra_args.append('-fvisibility=hidden')
-+#        if compiler_type == 'unix':
-+#            extra_args.append('-fvisibility=hidden')
- 
-     if not system_zstd and support_legacy:
-         extra_args.append('-DZSTD_LEGACY_SUPPORT=1')
-diff -ur mercurial-4.8.1-orig/mercurial/cext/osutil.c mercurial-4.8.1/mercurial/cext/osutil.c
---- mercurial-4.8.1-orig/mercurial/cext/osutil.c	2018-12-04 19:04:15.000000000 -0300
-+++ mercurial-4.8.1/mercurial/cext/osutil.c	2019-01-05 01:26:32.297876574 -0300
-@@ -1159,9 +1159,9 @@
- {
- 	int sig = 0;
- 	int r;
-+	sigset_t set;
- 	if (!PyArg_ParseTuple(args, "i", &sig))
- 		return NULL;
--	sigset_t set;
- 	r = sigemptyset(&set);
- 	if (r != 0)
- 		return PyErr_SetFromErrno(PyExc_OSError);
-diff -ur mercurial-4.8.1-orig/mercurial/ui.py mercurial-4.8.1/mercurial/ui.py
---- mercurial-4.8.1-orig/mercurial/ui.py	2018-12-04 19:04:15.000000000 -0300
-+++ mercurial-4.8.1/mercurial/ui.py	2019-01-05 01:33:09.805735796 -0300
-@@ -1592,7 +1592,7 @@
-             # avoid confusion.
-             editor = 'E'
-         else:
--            editor = 'vi'
-+            editor = 'nano'
-         return (encoding.environ.get("HGEDITOR") or
-                 self.config("ui", "editor", editor))
- 
diff --git a/dev-vcs/mercurial/patches/mercurial-4.9.1.patch b/dev-vcs/mercurial/patches/mercurial-4.9.1.patch
new file mode 100644
index 000000000..c2885f8aa
--- /dev/null
+++ b/dev-vcs/mercurial/patches/mercurial-4.9.1.patch
@@ -0,0 +1,28 @@
+diff --git a/contrib/python-zstandard/setup_zstd.py b/contrib/python-zstandard/setup_zstd.py
+index 23b6fa1..9cb9713 100644
+--- a/contrib/python-zstandard/setup_zstd.py
++++ b/contrib/python-zstandard/setup_zstd.py
+@@ -159,8 +159,8 @@ def get_c_extension(support_legacy=False, system_zstd=False, name='zstd',
+         extra_args.append('-DZDICTLIB_VISIBILITY=')
+         extra_args.append('-DZSTDERRORLIB_VISIBILITY=')
+ 
+-        if compiler_type == 'unix':
+-            extra_args.append('-fvisibility=hidden')
++        #if compiler_type == 'unix':
++        #    extra_args.append('-fvisibility=hidden')
+ 
+     if not system_zstd and support_legacy:
+         extra_args.append('-DZSTD_LEGACY_SUPPORT=1')
+diff --git a/mercurial/ui.py b/mercurial/ui.py
+index 63ecc01..b76dd92 100644
+--- a/mercurial/ui.py
++++ b/mercurial/ui.py
+@@ -1722,7 +1722,7 @@ class ui(object):
+             # avoid confusion.
+             editor = 'E'
+         else:
+-            editor = 'vi'
++            editor = 'nano'
+         return (encoding.environ.get("HGEDITOR") or
+                 self.config("ui", "editor", editor))
+