diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 714b133..f2383bf 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -25,13 +25,13 @@ repos:
   - id: trailing-whitespace
 
 - repo: https://github.com/psf/black-pre-commit-mirror
-  rev: "25.12.0"
+  rev: "26.3.1"
   hooks:
   - id: black-jupyter
     args: ["--line-length", "99"]
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: "v0.14.10"
+  rev: "v0.15.9"
   hooks:
     - id: ruff
       args: ["--fix", "--show-fixes"]
@@ -42,14 +42,14 @@ repos:
   - id: setup-cfg-fmt
 
 - repo: https://github.com/pre-commit/mirrors-mypy
-  rev: "v1.19.1"
+  rev: "v1.20.0"
   hooks:
     - id: mypy
       files: src
       stages: [manual]
 
 - repo: https://github.com/kynan/nbstripout
-  rev: "0.8.2"
+  rev: "0.9.1"
   hooks:
     - id: nbstripout
       args: ["--drop-empty-cells",
@@ -62,7 +62,7 @@ repos:
     stages: [manual]
 
 - repo: https://github.com/codespell-project/codespell
-  rev: "v2.4.1"
+  rev: "v2.4.2"
   hooks:
   - id: codespell
     args: ["-L", ""]
diff --git a/src/mintanalysis/pmt/ana/peSpectrumAnalyzerIcetray.py b/src/mintanalysis/pmt/ana/peSpectrumAnalyzerIcetray.py
index dfec1f9..1e5cbe8 100644
--- a/src/mintanalysis/pmt/ana/peSpectrumAnalyzerIcetray.py
+++ b/src/mintanalysis/pmt/ana/peSpectrumAnalyzerIcetray.py
@@ -5,8 +5,7 @@
 
 import matplotlib.pyplot as plt
 import numpy as np
-from icecube import icetray, pone_unfolding
-
+from icecube import icetray
 from matplotlib.backends.backend_pdf import PdfPages
 
 from mintanalysis.pmt.ana.peSpectrumAnalyzer import PESpectrumAnalyzer