diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a65b0ddc..15cf5a99 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -49,7 +49,7 @@ jobs:
     - name: Install ngspice
       shell: powershell
       run: |
-        curl.exe -L -o ngspice.7z "https://downloads.sourceforge.net/project/ngspice/ng-spice-rework/44.2/ngspice-44.2_64.7z"
+        curl.exe -L -o ngspice.7z "https://downloads.sourceforge.net/project/ngspice/ng-spice-rework/45.2/ngspice-45.2_64.7z"
 
         7z x ngspice.7z -o"C:\Program Files"
 
diff --git a/engibench/problems/power_electronics/README.md b/engibench/problems/power_electronics/README.md
index d386414c..8c327a94 100644
--- a/engibench/problems/power_electronics/README.md
+++ b/engibench/problems/power_electronics/README.md
@@ -5,7 +5,7 @@
 
 ## Installation of ngSpice
 ### 1. Windows
-Download ngSpice from https://sourceforge.net/projects/ngspice/files/ng-spice-rework/44.2/.
+Download NGSpice from https://sourceforge.net/projects/ngspice/files/ng-spice-rework/45.2/.
 
 Make sure `ngspice.exe` is located either at `C:/Program Files/Spice64/bin/ngspice.exe` or at `C:/Program Files (x86)/ngspice/bin/ngspice.exe`.
 
diff --git a/engibench/problems/power_electronics/utils/ngspice.py b/engibench/problems/power_electronics/utils/ngspice.py
index 6a8b6e25..ddba6769 100644
--- a/engibench/problems/power_electronics/utils/ngspice.py
+++ b/engibench/problems/power_electronics/utils/ngspice.py
@@ -6,7 +6,7 @@
 import subprocess
 
 MIN_SUPPORTED_VERSION: int = 42  # Major version number of ngspice
-MAX_SUPPORTED_VERSION: int = 44  # Major version number of ngspice
+MAX_SUPPORTED_VERSION: int = 45  # Major version number of ngspice
 
 
 class NgSpice:
@@ -48,7 +48,7 @@ def _get_ngspice_path(self) -> str:
                 ngspice_path = possible_paths[0]  # Default to first path if none found
             if ngspice_path is None or not os.path.exists(ngspice_path):
                 raise FileNotFoundError(
-                    f"ngspice.exe not found at {ngspice_path}. You can download it from https://sourceforge.net/projects/ngspice/files/ng-spice-rework/44.2/. You can also see our GitHub Actions workflow (test.yml) for how to automatically install it."
+                    f"ngspice.exe not found at {ngspice_path}. You can download it from https://sourceforge.net/projects/ngspice/files/ng-spice-rework/45.2/. You can also see our GitHub Actions workflow (test.yml) for how to automatically install it."
                 )
             return ngspice_path
         if self.system in ["darwin", "linux"]:
diff --git a/engibench/problems/power_electronics/v0.py b/engibench/problems/power_electronics/v0.py
index fb31655a..7ca0d030 100644
--- a/engibench/problems/power_electronics/v0.py
+++ b/engibench/problems/power_electronics/v0.py
@@ -59,7 +59,7 @@ class PowerElectronics(Problem[npt.NDArray]):
 
     ## Simulator
     The simulator is ngSpice circuit simulator. You can download it based on your operating system:
-    - Windows: [https://sourceforge.net/projects/ngspice/files/ng-spice-rework/44.2/](https://sourceforge.net/projects/ngspice/files/ng-spice-rework/44.2/)
+    - Windows: [https://sourceforge.net/projects/ngspice/files/ng-spice-rework/45.2/](https://sourceforge.net/projects/ngspice/files/ng-spice-rework/45.2/)
     - MacOS: `brew install ngspice`
     - Linux: `sudo apt-get install ngspice`