diff --git a/requirements.dev.txt b/requirements.dev.txt
index 928f1fe4..bcd0df8b 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -2,5 +2,5 @@ Flask-DebugToolbar==0.11.0
 Flask-Testing==0.8.1
 mock==2.0.0
 coverage==4.5.1
-pyinstrument==3.2.0
+pyinstrument==4.7.3
 pre-commit
\ No newline at end of file