diff --git a/.gitignore b/.gitignore
index aa0ab41..47d01d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 /libimagequant-2.10.0.tar.gz
 /libimagequant-2.10.1.tar.gz
 /libimagequant-2.10.2.tar.gz
+/libimagequant-2.11.0.tar.gz
diff --git a/libimagequant.spec b/libimagequant.spec
index 873e121..205e5e5 100644
--- a/libimagequant.spec
+++ b/libimagequant.spec
@@ -1,11 +1,13 @@
 Name:           libimagequant
-Version:        2.10.2
+Version:        2.11.0
 Release:        1%{?dist}
 Summary:        Palette quantization library
 
 License:        GPLv3+ and MIT
 URL:            https://github.com/ImageOptim/libimagequant
 Source0:        %{url}/archive/%{version}/%{name}-%{version}.tar.gz
+# Fix ‘acolormap’ not specified in enclosing ‘parallel’
+Patch0:         libimagequant_openmp.patch
 
 BuildRequires:  gcc
 
@@ -24,7 +26,7 @@ developing applications that use %{name}.
 
 
 %prep
-%autosetup
+%autosetup -p1
 
 
 %build
@@ -54,6 +56,9 @@ install -Dpm 0644 %{name}.h %{buildroot}%{_includedir}/%{name}.h
 
 
 %changelog
+* Mon Oct 30 2017 Sandro Mani <manisandro@gmail.com> - 2.11.0-1
+- Update to 2.11.0
+
 * Tue Aug 08 2017 Sandro Mani <manisandro@gmail.com> - 2.10.2-1
 - Update to 2.10.2
 
diff --git a/libimagequant_openmp.patch b/libimagequant_openmp.patch
new file mode 100644
index 0000000..1e2ec68
--- /dev/null
+++ b/libimagequant_openmp.patch
@@ -0,0 +1,12 @@
+diff -rupN libimagequant-2.11.0/libimagequant.c libimagequant-2.11.0-new/libimagequant.c
+--- libimagequant-2.11.0/libimagequant.c	2017-10-27 16:44:26.000000000 +0200
++++ libimagequant-2.11.0-new/libimagequant.c	2017-11-01 17:41:12.874643124 +0100
+@@ -1256,7 +1256,7 @@ LIQ_NONNULL static float remap_to_palett
+     kmeans_init(map, max_threads, average_color);
+ 
+     #pragma omp parallel for if (rows*cols > 3000) \
+-        schedule(static) default(none) shared(average_color) reduction(+:remapping_error)
++        schedule(static) default(none) shared(average_color) shared(acolormap) reduction(+:remapping_error)
+     for(int row = 0; row < rows; ++row) {
+         const f_pixel *const row_pixels = liq_image_get_row_f(input_image, row);
+         const f_pixel *const bg_pixels = input_image->background && acolormap[transparent_index].acolor.a < 1.f/256.f ? liq_image_get_row_f(input_image->background, row) : NULL;
diff --git a/sources b/sources
index 7ccb15b..23a366e 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libimagequant-2.10.2.tar.gz) = c7d3ccd38456748bab07ca8d855c7b963ca5bbedff26af72a7da80892683bc31b902544274042010076b0a119bd256988a828d36fe1e786f31743948b324dbc9
+SHA512 (libimagequant-2.11.0.tar.gz) = 9a3c20ebdead89b8d78604a07b7e22e8d6d7537d5641d0f4e7d8749f20d31200dad0cb71f0bf3c9008a5f46dad08d85e72c1e5d41c0f773d1938840044a01726