diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index 23248c4..5c6f604 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -48,7 +48,7 @@ jobs:
 
       - name: Update changelog for version ${{ needs.setup.outputs.new-version }}
         id: changelog
-        uses: actions/github-script@v2
+        uses: actions/github-script@v3
         with:
           script: |
             var fs = require('fs')
@@ -139,7 +139,7 @@ jobs:
         run: git push origin
 
       - name: Create pull request
-        uses: actions/github-script@v2
+        uses: actions/github-script@v3
         with:
           script: |
             const pr = await github.pulls.create({
diff --git a/Cargo.toml b/Cargo.toml
index 7bc539f..b3f6dcc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smawk"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Martin Geisler <martin@geisler.net>"]
 description = "Functions for finding row-minima in a totally monotone matrix."
 repository = "https://github.com/mgeisler/smawk"
diff --git a/README.md b/README.md
index 743b0ff..8568f2b 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,19 @@ implementation. Enable the `ndarray` Cargo feature to use it.
 
 ## Changelog
 
+### Version 0.3.1 (2021-01-30)
+
+This release relaxes the bounds on the `smawk_row_minima`,
+`smawk_column_minima`, and `online_column_minima` functions so that
+they work on matrices containing floating point numbers.
+
+* [#55](https://github.com/mgeisler/smawk/pull/55): Relax bounds to
+  `PartialOrd` instead of `Ord`.
+* [#56](https://github.com/mgeisler/smawk/pull/56): Update
+  dependencies to their latest versions.
+* [#59](https://github.com/mgeisler/smawk/pull/59): Give an example of
+  what SMAWK does in the README.
+
 ### Version 0.3.0 (2020-09-02)
 
 This release slims down the crate significantly by making `ndarray` an
diff --git a/src/lib.rs b/src/lib.rs
index c99c762..3d24d3e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -86,7 +86,7 @@
 //! unknown inputs, it can use [`monge::is_monge`] to verify that a
 //! matrix is a Monge matrix.
 
-#![doc(html_root_url = "https://docs.rs/smawk/0.3.0")]
+#![doc(html_root_url = "https://docs.rs/smawk/0.3.1")]
 
 #[cfg(feature = "ndarray")]
 pub mod brute_force;