diff --git a/ms2rescore/__init__.py b/ms2rescore/__init__.py
index 5638cf9c..e2462d7e 100644
--- a/ms2rescore/__init__.py
+++ b/ms2rescore/__init__.py
@@ -1,6 +1,6 @@
 """MS²Rescore: Sensitive PSM rescoring with predicted MS² peak intensities and RTs."""
 
-__version__ = "3.0.0"
+__version__ = "3.0.1"
 
 from warnings import filterwarnings
 
diff --git a/ms2rescore/gui/app.py b/ms2rescore/gui/app.py
index c436a902..f1be6b25 100644
--- a/ms2rescore/gui/app.py
+++ b/ms2rescore/gui/app.py
@@ -8,6 +8,7 @@
 import webbrowser
 from pathlib import Path
 from typing import Dict, List, Tuple
+import platform
 
 import customtkinter as ctk
 from joblib import parallel_backend
@@ -648,6 +649,7 @@ def app():
     dpi = root.winfo_fpixels("1i")
     root.geometry(f"{int(15*dpi)}x{int(10*dpi)}")
     root.title("MS²Rescore")
-    root.wm_iconbitmap(os.path.join(str(_IMG_DIR), "program_icon.ico"))
+    if platform.system() != "Linux":
+        root.wm_iconbitmap(os.path.join(str(_IMG_DIR), "program_icon.png"))
 
     root.mainloop()
diff --git a/pyproject.toml b/pyproject.toml
index 3053c8e6..8f135149 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -32,7 +32,8 @@ classifiers = [
 dynamic = ["version"]
 requires-python = ">=3.8"
 dependencies = [
-    "numpy>=1.16.0",
+    "numpy>=1.16.0; python_version != '3.11'",
+    "numpy==1.24.3; python_version == '3.11'",  # Incompatibility with sklearn, pygam, and TF...
     "pandas>=1.0",
     "rich>=12",
     "pyteomics>=4.1.0",
@@ -41,7 +42,7 @@ dependencies = [
     "click>=7",
     "cascade-config>=0.4.0",
     "deeplc>=2.2",
-    "deeplcretrainer>=0.2",           # TODO: Release version pin
+    "deeplcretrainer>=0.2",
     "tomli>=2; python_version < '3.11'",
     "psm_utils>=0.4",
     "customtkinter>=5,<6",