diff --git a/dv/riscv_compliance/ibex_riscv_compliance.core b/dv/riscv_compliance/ibex_riscv_compliance.core
index 6f53ee3f21..9e45809f57 100644
--- a/dv/riscv_compliance/ibex_riscv_compliance.core
+++ b/dv/riscv_compliance/ibex_riscv_compliance.core
@@ -161,6 +161,6 @@ targets:
           - '--trace-structs'
           - '--trace-params'
           - '--trace-max-array 1024'
-          - '-CFLAGS "-std=c++11 -Wall -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_riscv_compliance -g"'
+          - '-CFLAGS "-std=c++14 -Wall -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_riscv_compliance -g"'
           - '-LDFLAGS "-pthread -lutil -lelf"'
           - "-Wall"
diff --git a/dv/verilator/simple_system_cosim/ibex_simple_system_cosim.core b/dv/verilator/simple_system_cosim/ibex_simple_system_cosim.core
index 958540e73a..fd19ef688a 100644
--- a/dv/verilator/simple_system_cosim/ibex_simple_system_cosim.core
+++ b/dv/verilator/simple_system_cosim/ibex_simple_system_cosim.core
@@ -179,7 +179,7 @@ targets:
           - '--trace-structs'
           - '--trace-params'
           - '--trace-max-array 1024'
-          - '-CFLAGS "-std=c++11 -Wall -DVL_USER_STOP -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_simple_system -g `pkg-config --cflags riscv-riscv riscv-disasm riscv-fdt`"'
+          - '-CFLAGS "-std=c++14 -Wall -DVL_USER_STOP -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_simple_system -g `pkg-config --cflags riscv-riscv riscv-disasm riscv-fdt`"'
           - '-LDFLAGS "-pthread -lutil -lelf `pkg-config --libs riscv-riscv riscv-disasm riscv-fdt`"'
           - "-Wall"
           - "-Wwarn-IMPERFECTSCH"
diff --git a/examples/simple_system/ibex_simple_system.core b/examples/simple_system/ibex_simple_system.core
index 0e3e723fe4..bfede16a4b 100644
--- a/examples/simple_system/ibex_simple_system.core
+++ b/examples/simple_system/ibex_simple_system.core
@@ -175,7 +175,7 @@ targets:
           - '--trace-structs'
           - '--trace-params'
           - '--trace-max-array 1024'
-          - '-CFLAGS "-std=c++11 -Wall -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_simple_system -g"'
+          - '-CFLAGS "-std=c++14 -Wall -DVM_TRACE_FMT_FST -DTOPLEVEL_NAME=ibex_simple_system -g"'
           - '-LDFLAGS "-pthread -lutil -lelf"'
           - "-Wall"
           - "-Wwarn-IMPERFECTSCH"