diff --git a/lldb/test/requirements.txt b/lldb/test/requirements.txt
new file mode 100644
index 0000000000000..83fbe6a5e1b97
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+++ b/lldb/test/requirements.txt
@@ -0,0 +1,6 @@
+# These Python packages are required to be able to run the LLDB test suite.
+
+psutil>=5.9.4
+# Pexpect tests are known not to work on Windows, so are disabled.
+# See llvm.org/pr22274.
+pexpect>=4.9.0; sys_platform != 'win32'