diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 0a4953c39..d32bb0513 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -29,15 +29,11 @@ jobs:
       Build & Test
       (${{ matrix.os }})
       (C++ ${{ matrix.cxx-standard }})
-      ${{ matrix.memory-mapped == 'OFF' && '(USE_MEMORY_MAPPED_FILE=OFF)' || '' }}
-      ${{ matrix.static-build == 'OFF' && '(BUILD_SHARED_LIBS=OFF)' || '' }}
     needs: checkSource
     strategy:
       fail-fast: false
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        memory-mapped: ["ON"]
-        static-build: ["OFF"]
         cxx-standard: [17]
         include:
           - os: ubuntu-latest
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a745fabd7..9b68166f4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -126,7 +126,7 @@ set(MAPNIK_OPTIONAL_LIBS_INCLUDE "")
 #############################
 #############################
 
-set(CMAKE_CXX_STANDARD 14 CACHE STRING "Sets the c++ standard. c++14 is minimum.")
+set(CMAKE_CXX_STANDARD 17 CACHE STRING "Sets the c++ standard. c++17 is minimum.")
 set(CMAKE_CXX_STANDARD_REQUIRED ON) # require the specified CMAKE_CXX_STANDARD
 set(CMAKE_CXX_EXTENSIONS OFF CACHE STRING "Enables the compiler specific extensions.") # Fallsback to -std=c++<ver> if off
 message(STATUS "Using c++${CMAKE_CXX_STANDARD}")