diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 099eb76..51e047f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,15 +24,15 @@ jobs:
     runs-on: ${{ matrix.os }}
     permissions: write-all
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v8.0.0
 
       - name: Install the package & dependencies
         run: |
@@ -77,7 +77,7 @@ jobs:
         run: uv run pytest -v
 
       - name: Save test results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         if: ${{ runner.os == 'Linux' && matrix.python-version == '3.13' }}
         with:
           name: test_results
@@ -91,15 +91,15 @@ jobs:
     runs-on: ubuntu-latest
     needs: [test]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "3.13"
 
       - name: Install uv
-        uses: astral-sh/setup-uv@v5
+        uses: astral-sh/setup-uv@v8.0.0
 
       - name: Install the package & dependencies
         run: |
@@ -119,7 +119,7 @@ jobs:
         run: python3 utils/run_ci_simulations.py ${{ matrix.job_num }}
 
       - name: Save calibration results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: calibration_results_${{ matrix.job_num }}
           path: tests/all_calibration_results/*
@@ -129,7 +129,7 @@ jobs:
     needs: calibrate
     steps:
       - name: Merge Artifacts
-        uses: actions/upload-artifact/merge@v4
+        uses: actions/upload-artifact/merge@v7
         with:
           name: calibration_results
           pattern: calibration_results_*
diff --git a/src/openstudio_hpxml_calibration/utils.py b/src/openstudio_hpxml_calibration/utils.py
index 69b0e85..07ed519 100644
--- a/src/openstudio_hpxml_calibration/utils.py
+++ b/src/openstudio_hpxml_calibration/utils.py
@@ -218,9 +218,9 @@ def get_tmy3_weather():
     ----------
     None
     """
-    weather_files_url = "https://data.nrel.gov/system/files/128/tmy3s-cache-csv.zip"
+    weather_files_url = "https://data.nlr.gov/system/files/128/1774980365-USA-TMY3-EPW.zip"
     weather_zip_filename = weather_files_url.split("/")[-1]
-    weather_zip_sha256 = "58f5d2821931e235de34a5a7874f040f7f766b46e5e6a4f85448b352de4c8846"
+    weather_zip_sha256 = "a0d03eea64818280c740e0fda3f1bc4d8605c989facce169ded3d08fb53a135e"
 
     # Download file
     cache_dir = get_cache_dir()