diff --git a/Jenkinsfile b/Jenkinsfile
index 03e078666726f722b5b24043da554519aa0c0973..35f2f18c9c501214f19d4148c8c0bc873e8013b6 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -156,20 +156,15 @@ pipeline {
             }
           }
           steps {
-            script {
-              lock(resource: "conanCache-${env.NODE_NAME}") {
-                sh 'conan user'
-                sh 'find $CONAN_USER_HOME -name "system_reqs.txt" -exec rm {} \\;'
-                configure {
-                  cmakeOptions =
-                    '-DOGS_USE_CONAN=ON ' +
-                    '-DOGS_CPU_ARCHITECTURE=generic '
-                  config = 'Debug'
-                }
-              }
-              build { }
-              build { target = 'tests' }
+            sh 'conan user'
+            configure {
+              cmakeOptions =
+                '-DOGS_USE_CONAN=ON ' +
+                '-DOGS_CPU_ARCHITECTURE=generic '
+              config = 'Debug'
             }
+            build { }
+            build { target = 'tests' }
           }
           post {
             always { publishReports { } }
diff --git a/scripts/cmake/Find.cmake b/scripts/cmake/Find.cmake
index f0aa58133cae498dff3355d01be0b1fa1aa9e419..ab867da24e3424e82b1f2ce5b29e4cef8c95ee08 100644
--- a/scripts/cmake/Find.cmake
+++ b/scripts/cmake/Find.cmake
@@ -52,7 +52,6 @@ find_program(HUGO hugo)
 find_program(NPM npm)
 find_program(YARN yarn)
 find_program(PIP pip)
-find_package(PythonInterp)
 find_program(PANDOC_CITEPROC pandoc-citeproc)
 
 find_program(MODULE_CMD modulecmd
@@ -64,8 +63,6 @@ find_program(MODULE_CMD modulecmd
 find_package(Boost REQUIRED)
 include_directories(SYSTEM ${Boost_INCLUDE_DIRS})
 
-include(VtkModules)
-#find_package(VTK COMPONENTS ${VTK_MODULES} REQUIRED)
 find_package(VTK 8.1.0 REQUIRED)
 include(${VTK_USE_FILE})
 
diff --git a/scripts/cmake/VtkModules.cmake b/scripts/cmake/VtkModules.cmake
deleted file mode 100644
index 6ddd41b9fe4f0f4f0d0112cde3a34117aac1a711..0000000000000000000000000000000000000000
--- a/scripts/cmake/VtkModules.cmake
+++ /dev/null
@@ -1,33 +0,0 @@
-# CLI modules
-set(VTK_MODULES
-    vtkIOXML
-    CACHE INTERNAL "Required VTK / ParaView modules"
-)
-
-if(OGS_USE_MPI)
-    set(VTK_MODULES ${VTK_MODULES} vtkIOParallelXML vtkParallelMPI)
-endif()
-
-if(OGS_BUILD_GUI)
-    set(VTK_MODULES ${VTK_MODULES}
-        vtkRenderingCore
-        vtknetcdfcpp
-        vtkIOLegacy
-        vtkIOImage
-        vtkRenderingAnnotation
-        vtkFiltersExtraction
-        vtkFiltersGeometry
-        vtkFiltersTexture
-        vtkFiltersModeling
-        vtkFiltersSources
-        vtkImagingCore
-        vtkInteractionWidgets
-        vtkInteractionStyle
-        vtkIOExport
-        vtkRenderingFreeType
-    )
-endif()
-
-if(OGS_INSITU)
-    set(VTK_MODULES ${VTK_MODULES} vtkPVPythonCatalyst)
-endif()
diff --git a/scripts/docker/Dockerfile.gcc.full b/scripts/docker/Dockerfile.gcc.full
index 2fc700247fa4dde6ad3c8e4f9077d73ea1c7f587..f02e9c37c765fa350cf5ac5c853b7eec10062556 100644
--- a/scripts/docker/Dockerfile.gcc.full
+++ b/scripts/docker/Dockerfile.gcc.full
@@ -76,6 +76,6 @@ RUN curl https://include-what-you-use.org/downloads/include-what-you-use-0.8-x86
   && tar xf include-what-you-use-0.8-x86_64-linux-gnu-ubuntu-16.04.tar.gz -C /usr/ --strip-components=1 \
   && rm include-what-you-use-0.8-x86_64-linux-gnu-ubuntu-16.04.tar.gz
 
-RUN apt-get install -y mesa-common-dev
+RUN apt-get install -y mesa-common-dev wget
 
 USER jenkins