diff --git a/README.md b/README.md
index b4dd080..3729f06 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,7 @@ Dependencies
 * `C++17` - the library uses C++17 `std::uncaught_exceptions()` feature. When building sdbus-c++ manually, make sure you use a compiler that supports that feature (gcc >= 6, clang >= 3.7)
 * `libsystemd` - systemd library containing sd-bus implementation. This library is part of systemd. Systemd at least v236 is needed. (In case you have a non-systemd environment, don't worry, see [Solving libsystemd dependency](docs/using-sdbus-c++.md#solving-libsystemd-dependency) for more information.)
 * `googletest` - google unit testing framework, only necessary when building tests, will be downloaded and built automatically.
+* `pkgconfig` - required for sdbus-c++ to be able to find some dependency packages.
 
 Licensing
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