diff --git a/pyproject.toml b/pyproject.toml
index a8622e235d..ce24c3a3cc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -57,7 +57,7 @@ dev = [
     # Profiling
     "ansi2html",
     "psutil",
-    "pyinstrument>=4.7",
+    "pyinstrument>=4.3",
     # Building requirements files
     "pip-tools",
 ]
diff --git a/requirements/dev.txt b/requirements/dev.txt
index e8bbc2e0c9..a6e0468a19 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -164,7 +164,7 @@ psutil==5.9.5
     # via tlo (pyproject.toml)
 pycparser==2.21
     # via cffi
-pyinstrument==4.7.3
+pyinstrument==4.5.3
     # via tlo (pyproject.toml)
 pyjwt[crypto]==2.8.0
     # via
diff --git a/src/scripts/profiling/run_profiling.py b/src/scripts/profiling/run_profiling.py
index 180a7571ab..caca37ed50 100644
--- a/src/scripts/profiling/run_profiling.py
+++ b/src/scripts/profiling/run_profiling.py
@@ -306,7 +306,6 @@ def run_profiling(
             timeline=False,
             color=True,
             flat=True,
-            flat_time="total",
             processor_options={"show_regex": ".*/tlo/.*", "hide_regex": ".*/pandas/.*", "filter_threshold": 1e-3}
         )
         converter = Ansi2HTMLConverter(title=output_name)