diff --git a/abi_symbols b/abi_symbols
--- a/abi_symbols
+++ b/abi_symbols
@@ -9358,8 +9358,10 @@
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser21RemoveScalarVariablesEv
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser21RemoveVectorVariablesEv
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser21UpdateNeededVariablesEv
+libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetScalarVariableIndexEPKc
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetScalarVariableValueEPKc
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetScalarVariableValueEi
+libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetVectorVariableIndexEPKc
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetVectorVariableValueEPKc
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22GetVectorVariableValueEi
 libvtkCommonMisc-8.1.so.1:_ZN17vtkFunctionParser22OperatorWithinVariableEi
@@ -32795,6 +32797,7 @@
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D14TextureIsStaleEP11vtkRenderer
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D15GenerateTextureEP11vtkRenderer
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D15SetTextPropertyEP15vtkTextProperty
+libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D15UpdateInternalsEP11vtkRenderer
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D18ForceTranslucentOnEv
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D19ForceTranslucentOffEv
 libvtkRenderingCore-8.1.so.1:_ZN23vtkBillboardTextActor3D19GetForceTranslucentEv
diff --git a/package.yml b/package.yml
--- a/package.yml
+++ b/package.yml
@@ -1,8 +1,8 @@
 name       : VTK
-version    : 8.1.0
-release    : 4
+version    : 8.1.1
+release    : 5
 source     :
-    - https://www.vtk.org/files/release/8.1/VTK-8.1.0.tar.gz : 6e269f07b64fb13774f5925161fb4e1f379f4e6a0131c8408c555f6b58ef3cb7
+    - https://www.vtk.org/files/release/8.1/VTK-8.1.1.tar.gz : 71a09b4340f0a9c58559fe946dc745ab68a866cf20636a41d97b6046cb736324
 license    : BSD-3-Clause
 component  : programming
 summary    : Visualization toolkit
@@ -11,13 +11,10 @@
 builddeps  :
     - pkgconfig(gl)
     - pkgconfig(xt)
-    - pkgconfig(x11)
 setup      : |
-    mkdir build && pushd build
-    %cmake .. -DCMAKE_BUILD_TYPE=Release \
-              -DVTK_INSTALL_LIBRARY_DIR=%libdir%
-    popd
+    %cmake_ninja -DCMAKE_BUILD_TYPE=Release \
+        -DVTK_INSTALL_LIBRARY_DIR=%libdir%
 build      : |
-    %make -C build
+    %ninja_build
 install    : |
-    %make_install -C build
+    %ninja_install
diff --git a/pspec_x86_64.xml b/pspec_x86_64.xml
--- a/pspec_x86_64.xml
+++ b/pspec_x86_64.xml
@@ -31,7 +31,7 @@
 </Description>
         <PartOf>programming.devel</PartOf>
         <RuntimeDependencies>
-            <Dependency release="4">VTK</Dependency>
+            <Dependency release="5">VTK</Dependency>
         </RuntimeDependencies>
         <Files>
             <Path fileType="header">/usr/include/</Path>
@@ -41,12 +41,12 @@
         </Files>
     </Package>
     <History>
-        <Update release="4">
-            <Date>2018-01-23</Date>
-            <Version>8.1.0</Version>
+        <Update release="5">
+            <Date>2018-05-12</Date>
+            <Version>8.1.1</Version>
             <Comment>Packaging update</Comment>
             <Name>Pierre-Yves</Name>
             <Email>pyu@riseup.net</Email>
         </Update>
     </History>
 </PISI>
\ No newline at end of file