diff --git a/.github/workflows/toolchains/toolchain_arm64.cmake b/.github/workflows/toolchains/toolchain_arm64.cmake
index 17e99a2..c0a1d48 100644
--- a/.github/workflows/toolchains/toolchain_arm64.cmake
+++ b/.github/workflows/toolchains/toolchain_arm64.cmake
@@ -37,7 +37,7 @@ set(CMAKE_PROGRAM_PATH  /usr/bin/aarch64-linux-gnu)
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
-set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++ -std=c++14")
 
 
 # Use our definitions for compiler tools
diff --git a/.github/workflows/toolchains/toolchain_armhf.cmake b/.github/workflows/toolchains/toolchain_armhf.cmake
index 59e4e25..11b8871 100644
--- a/.github/workflows/toolchains/toolchain_armhf.cmake
+++ b/.github/workflows/toolchains/toolchain_armhf.cmake
@@ -37,7 +37,7 @@ set(CMAKE_PROGRAM_PATH  /usr/bin/arm-linux-gnueabihf)
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
-set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++ -std=c++14")
 
 
 # Use our definitions for compiler tools
diff --git a/.github/workflows/toolchains/toolchain_i386.cmake b/.github/workflows/toolchains/toolchain_i386.cmake
index c6d1337..5e2c06e 100644
--- a/.github/workflows/toolchains/toolchain_i386.cmake
+++ b/.github/workflows/toolchains/toolchain_i386.cmake
@@ -37,7 +37,7 @@ set(CMAKE_PROGRAM_PATH  /usr/bin/i386-linux-gnu)
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
-set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++ -std=c++14")
 
 
 # Use our definitions for compiler tools
diff --git a/.github/workflows/toolchains/toolchain_ppc64le.cmake b/.github/workflows/toolchains/toolchain_ppc64le.cmake
index 765d5a0..f3ea2f8 100644
--- a/.github/workflows/toolchains/toolchain_ppc64le.cmake
+++ b/.github/workflows/toolchains/toolchain_ppc64le.cmake
@@ -37,7 +37,7 @@ set(CMAKE_PROGRAM_PATH  /usr/bin/powerpc64le-linux-gnu)
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
-set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++ -std=c++14")
 
 
 # Use our definitions for compiler tools
diff --git a/.github/workflows/toolchains/toolchain_riscv64.cmake b/.github/workflows/toolchains/toolchain_riscv64.cmake
index b7c1f30..8ae3690 100644
--- a/.github/workflows/toolchains/toolchain_riscv64.cmake
+++ b/.github/workflows/toolchains/toolchain_riscv64.cmake
@@ -37,7 +37,7 @@ set(CMAKE_PROGRAM_PATH  /usr/bin/riscv64-linux-gnu)
 set(CMAKE_EXE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_MODULE_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
 set(CMAKE_SHARED_LINKER_FLAGS_INIT "-fuse-ld=lld -rtlib=compiler-rt -unwindlib=libunwind")
-set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++")
+set(CMAKE_CXX_FLAGS_INIT "-stdlib=libc++ -std=c++14")
 
 
 # Use our definitions for compiler tools