diff --git a/readme.md b/readme.md
index 2e27c817..5eda4ef6 100644
--- a/readme.md
+++ b/readme.md
@@ -70,4 +70,7 @@ I will soon publish a contributing.md listing the code style to use.
 
 # Credits
 * [SoapySDR (PothosWare)](https://github.com/pothosware/SoapySDR)
-* [ImGui (ocornut)](https://github.com/ocornut/imgui)
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+* [ImGui (ocornut)](https://github.com/ocornut/imgui)
+* [spdlog (gabime)](https://github.com/gabime/spdlog)
+* [json (nlohmann)](https://github.com/nlohmann/json)
+* [portaudio (PortAudio community)](http://www.portaudio.com/)
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