diff --git a/subprojects/acpi-power-state-daemon/meson.build b/subprojects/acpi-power-state-daemon/meson.build
index 5b312ac..48d6a1e 100644
--- a/subprojects/acpi-power-state-daemon/meson.build
+++ b/subprojects/acpi-power-state-daemon/meson.build
@@ -19,7 +19,7 @@
   default_options: [
     'warning_level=3',
     'werror=true',
-    'cpp_std=c++20',
+    'cpp_std=c++23',
   ],
 )
 
diff --git a/subprojects/dhcp-done/meson.build b/subprojects/dhcp-done/meson.build
index 2ee0826..abc449c 100644
--- a/subprojects/dhcp-done/meson.build
+++ b/subprojects/dhcp-done/meson.build
@@ -16,11 +16,11 @@
   'dhcp-done',
   'cpp',
   version: '0.1',
-  meson_version: '>=0.58.0',
+  meson_version: '>=1.1.1',
   default_options: [
     'warning_level=3',
     'werror=true',
-    'cpp_std=c++20',
+    'cpp_std=c++23',
   ],
 )
 
diff --git a/subprojects/libcr51sign/meson.build b/subprojects/libcr51sign/meson.build
index 7777285..b37f533 100644
--- a/subprojects/libcr51sign/meson.build
+++ b/subprojects/libcr51sign/meson.build
@@ -16,7 +16,7 @@
   'libcr51sign',
   'c',
   version: '0.1',
-  meson_version: '>=0.58.0',
+  meson_version: '>=1.1.1',
   default_options: [
     'warning_level=3',
     'werror=true',
diff --git a/subprojects/metrics-ipmi-blobs/meson.build b/subprojects/metrics-ipmi-blobs/meson.build
index 146ec72..54d831c 100644
--- a/subprojects/metrics-ipmi-blobs/meson.build
+++ b/subprojects/metrics-ipmi-blobs/meson.build
@@ -19,7 +19,7 @@
   default_options: [
     'warning_level=3',
     'werror=true',
-    'cpp_std=c++20',
+    'cpp_std=c++23',
     'tests=' + (meson.is_subproject() ? 'disabled' : 'auto'),
   ],
 )
diff --git a/subprojects/ncsid/meson.build b/subprojects/ncsid/meson.build
index a813ba4..5d0db18 100644
--- a/subprojects/ncsid/meson.build
+++ b/subprojects/ncsid/meson.build
@@ -16,11 +16,11 @@
   'gbmc-ncsid',
   ['cpp', 'c'],
   version: '0.1',
-  meson_version: '>=0.58.0',
+  meson_version: '>=1.1.1',
   default_options: [
     'warning_level=3',
     'werror=true',
-    'cpp_std=c++20',
+    'cpp_std=c++23',
     'c_std=c18',
     'tests=' + (meson.is_subproject() ? 'disabled' : 'auto'),
   ])
diff --git a/subprojects/nemora-postd/meson.build b/subprojects/nemora-postd/meson.build
index 487b7c0..b1c8921 100644
--- a/subprojects/nemora-postd/meson.build
+++ b/subprojects/nemora-postd/meson.build
@@ -19,7 +19,7 @@
   default_options: [
     'warning_level=3',
     'werror=true',
-    'cpp_std=c++20'
+    'cpp_std=c++23'
   ],
 )