diff --git a/meson.build b/meson.build
index 127fa2c..6c55635 100644
--- a/meson.build
+++ b/meson.build
@@ -22,6 +22,8 @@
     language: 'cpp',
 )
 
+cpp = meson.get_compiler('cpp')
+
 build_tests = get_option('tests')
 gpiodcxx = dependency(
     'libgpiodcxx',
@@ -40,6 +42,18 @@
     ],
 )
 
+if cpp.has_header('nlohmann/json.hpp')
+    nlohmann_json = declare_dependency()
+else
+    subproject('nlohmann-json')
+    nlohmann_json = declare_dependency(
+        include_directories: include_directories(
+            'subprojects/nlohmann-json/single_include',
+            'subprojects/nlohmann-json/single_include/nlohmann',
+        )
+    )
+endif
+
 systemd = dependency('systemd')
 systemd_system_unit_dir = systemd.get_variable(
     pkgconfig: 'systemdsystemunitdir',
diff --git a/subprojects/nlohmann-json.wrap b/subprojects/nlohmann-json.wrap
new file mode 100644
index 0000000..9096612
--- /dev/null
+++ b/subprojects/nlohmann-json.wrap
@@ -0,0 +1,3 @@
+[wrap-git]
+url = https://github.com/nlohmann/json.git
+revision = HEAD