diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..5ace460
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0582f07..129c784 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -54,7 +54,7 @@ jobs:
         run: |
           python -m pip install -e .
       - name: Upload asdfspline.h header file
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v7
         with:
           name: header-file-${{ matrix.os }}
           path: |
@@ -68,7 +68,7 @@ jobs:
         run: |
           python -m nbconvert --execute --to html *.ipynb
       - name: Upload converted notebooks
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v7
         with:
           name: notebooks-${{ matrix.os }}
           path: |
@@ -99,7 +99,7 @@ jobs:
   msrv:
     strategy:
       matrix:
-        rust-version: ["1.61.0"]
+        rust-version: ["1.71.0"]
     runs-on: ubuntu-latest
     steps:
       - name: Clone Git repository
diff --git a/Cargo.toml b/Cargo.toml
index bd5d016..abd899e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.0.0"
 authors = ["Matthias Geier <Matthias.Geier@gmail.com>"]
 license = "MIT OR Apache-2.0"
 edition = "2021"
+rust-version = "1.71"
 
 publish = false
 
@@ -12,5 +13,6 @@ members = ["ffi"]
 
 [dependencies]
 superslice = "1"
-thiserror = "1.0"
-nalgebra = "0.32"
+thiserror = "2"
+# 0.34 switches to edition 2024 and MSRV 1.84
+nalgebra = "0.33"
diff --git a/ffi/Cargo.toml b/ffi/Cargo.toml
index 56d8a55..f0e59cb 100644
--- a/ffi/Cargo.toml
+++ b/ffi/Cargo.toml
@@ -10,6 +10,7 @@ crate-type = ["staticlib"]
 
 [dependencies]
 asdfspline = { path = ".." }
-libc = "*"
+libc = "0.2"
 # This doesn't have to be the same version as used in the main crate:
-nalgebra = "0.32"
+# 0.34 switches to edition 2024 and MSRV 1.84
+nalgebra = "0.33"
diff --git a/ffi/src/lib.rs b/ffi/src/lib.rs
index 3c9ee19..547baae 100644
--- a/ffi/src/lib.rs
+++ b/ffi/src/lib.rs
@@ -357,7 +357,7 @@ pub unsafe extern "C" fn asdf_monotonecubic_get_time(
     let values = unsafe { ffi_slice(values, count) };
     let output = unsafe { ffi_slice_mut(output.cast::<MaybeUninit<_>>(), count) };
     for (val, out) in values.iter().zip(output) {
-        *out = MaybeUninit::new(curve.get_time(*val).unwrap_or(std::f32::NAN));
+        *out = MaybeUninit::new(curve.get_time(*val).unwrap_or(f32::NAN));
     }
 }
 
diff --git a/python/tests/test_PiecewiseMonotoneCubicSpline.py b/python/tests/test_PiecewiseMonotoneCubicSpline.py
index 22eff58..225e8e9 100644
--- a/python/tests/test_PiecewiseMonotoneCubicSpline.py
+++ b/python/tests/test_PiecewiseMonotoneCubicSpline.py
@@ -17,7 +17,7 @@ def test_values_errors():
 
 def test_grid_errors():
     with pytest.raises(ValueError, match='NaN.*not allowed in grid'):
-        PiecewiseMonotoneCubicSpline([0, 1], grid=[0, np.NaN])
+        PiecewiseMonotoneCubicSpline([0, 1], grid=[0, np.nan])
     with pytest.raises(ValueError, match='grid.*must be strictly ascending'):
         PiecewiseMonotoneCubicSpline([0, 1], grid=[0, 0])
 
diff --git a/src/adapters.rs b/src/adapters.rs
index 40998ce..2f04a6d 100644
--- a/src/adapters.rs
+++ b/src/adapters.rs
@@ -193,7 +193,7 @@ where
         let mut u_grid = Vec::new();
         let mut u_missing = Vec::new();
         for (i, &u) in inner.grid().iter().enumerate() {
-            if missing_times.iter().any(|&x| x == i) {
+            if missing_times.contains(&i) {
                 u_missing.push(u);
             } else {
                 u_grid.push(u);
diff --git a/src/piecewisecubiccurve.rs b/src/piecewisecubiccurve.rs
index dedd18f..b776f97 100644
--- a/src/piecewisecubiccurve.rs
+++ b/src/piecewisecubiccurve.rs
@@ -24,7 +24,7 @@ impl<V: Vector> PiecewiseCubicCurve<V> {
         let segments = segments.into();
         let grid = grid.into();
         use Error::*;
-        if segments.len() < 1 {
+        if segments.is_empty() {
             return Err(ZeroSegments);
         }
         if segments.len() + 1 != grid.len() {