diff --git a/requirements.txt b/requirements.txt
index 6d8deab..6a24f1d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
-h5py>=2.8.0,<3.2.0
+h5py>=2.8.0,<3.0.0
 matplotlib>=3.0.0,<4.0.0
 Pillow>9.0.0,<10.0.0
-tensorflow<2.7.0
+tensorflow<2.9.0
 scipy>1.4.0,<2.0.0
-numpy>=1.16.0,<1.20.0
+numpy>=1.20.0,<1.23.0
 tqdm>=4.0.0,<5.0
-mrcfile>1.0.0,<2.0.0
\ No newline at end of file
+mrcfile>1.0.0,<2.0.0
diff --git a/tpx3format/read.py b/tpx3format/read.py
index d0d2351..d9cf519 100644
--- a/tpx3format/read.py
+++ b/tpx3format/read.py
@@ -349,6 +349,7 @@ def parse_data_packages(positions, f, tot_correction, settings):
     # There may have been hits that were not parsed (failed package), resize those empty rows away.
     hits.resize((i,), refcheck=False)
 
+    # TODO: Make this marker pixel configureable.
     hits, min_toa, max_toa = marker_pixel(hits, {'x': 237, 'y': 176, 'chipId': 0})
 
     if settings.hits_remove_cross: