diff --git a/.gitmodules b/.gitmodules
index 3fee5dd3..fbe945c5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,9 +1,6 @@
 [submodule "third_party/rapidjson"]
 	path = third_party/rapidjson
 	url = https://github.com/miloyip/rapidjson
-[submodule "third_party/tiny-process-library"]
-	path = third_party/tiny-process-library
-	url = https://github.com/eidheim/tiny-process-library/
 [submodule "third_party/doctest"]
 	path = third_party/doctest
 	url = https://github.com/onqtam/doctest
diff --git a/command_line.cc b/command_line.cc
index 93a5f0b8..82c8c9f6 100644
--- a/command_line.cc
+++ b/command_line.cc
@@ -14,7 +14,6 @@
 #include "src/threaded_queue.h"
 #include "src/typed_bidi_message_queue.h"
 
-#include "third_party/tiny-process-library/process.hpp"
 #include "third_party/doctest/doctest/doctest.h"
 
 #include <rapidjson/istreamwrapper.h>
diff --git a/third_party/tiny-process-library b/third_party/tiny-process-library
deleted file mode 160000
index 876ce117..00000000
--- a/third_party/tiny-process-library
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 876ce117e7c92458bd1322f39935f28419d87b20