diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 76a36288..72be6896 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -56,7 +56,6 @@ repos:
     hooks:
       - id: black
         language_version: python3.10
-        exclude: tests/utils/fast_upper_envelope_org.py
 #  - repo: https://github.com/charliermarsh/ruff-pre-commit
 #    rev: v0.0.282
 #    hooks:
@@ -77,7 +76,6 @@ repos:
           - --wrap-descriptions
           - '88'
           - --blank
-        exclude: tests/utils/fast_upper_envelope_org.py
   - repo: https://github.com/nbQA-dev/nbQA
     rev: 1.7.0
     hooks:
diff --git a/README.md b/README.md
index 0678f8cb..9c86cab3 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 [![Continuous Integration Workflow](https://github.com/OpenSourceEconomics/dcegm/actions/workflows/main.yml/badge.svg)](https://github.com/OpenSourceEconomics/dcegm/actions/workflows/main.yml)
 [![Codecov](https://codecov.io/gh/OpenSourceEconomics/dcegm/branch/main/graph/badge.svg)](https://app.codecov.io/gh/OpenSourceEconomics/dcegm)
+[![pre-commit.ci status](https://results.pre-commit.ci/badge/github/OpenSourceEconomics/dcegm/main.svg)](https://results.pre-commit.ci/latest/github/OpenSourceEconomics/dcegm/main)
 [![Black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 
 Python implementation of the Discrete-Continuous Endogenous Grid Method (DC-EGM) for
diff --git a/src/dcegm/egm/aggregate_marginal_utility.py b/src/dcegm/egm/aggregate_marginal_utility.py
index 44ffeb7a..9c50a00b 100644
--- a/src/dcegm/egm/aggregate_marginal_utility.py
+++ b/src/dcegm/egm/aggregate_marginal_utility.py
@@ -80,8 +80,7 @@ def aggregate_marg_utils_and_exp_values(
 
 
 def calculate_choice_probs_and_unsqueezed_logsum(
-    choice_values_per_state: jnp.ndarray,
-    taste_shock_scale: float
+    choice_values_per_state: jnp.ndarray, taste_shock_scale: float
 ) -> Tuple[jnp.ndarray, jnp.ndarray, jnp.ndarray]:
     max_value_per_state = jnp.nanmax(choice_values_per_state, axis=1, keepdims=True)
 
diff --git a/src/dcegm/pre_processing/state_space.py b/src/dcegm/pre_processing/state_space.py
index 984688cc..d547211a 100644
--- a/src/dcegm/pre_processing/state_space.py
+++ b/src/dcegm/pre_processing/state_space.py
@@ -478,7 +478,7 @@ def create_indexer_for_space(space):
         max_var_values + 1, fill_value=-99999999, dtype=np.int64
     )
     index_tuple = tuple(space[:, i] for i in range(space.shape[1]))
-    
+
     map_vars_to_index[index_tuple] = np.arange(space.shape[0], dtype=np.int64)
 
     return map_vars_to_index
diff --git a/src/dcegm/simulation/simulate.py b/src/dcegm/simulation/simulate.py
index 9deb8e4a..9560b872 100644
--- a/src/dcegm/simulation/simulate.py
+++ b/src/dcegm/simulation/simulate.py
@@ -5,7 +5,6 @@
 import jax.numpy as jnp
 import numpy as np
 from dcegm.interface import get_state_choice_index_per_state
-
 from dcegm.simulation.sim_utils import compute_final_utility_for_each_choice
 from dcegm.simulation.sim_utils import draw_taste_shocks
 from dcegm.simulation.sim_utils import interpolate_policy_and_value_for_all_agents