diff --git a/.copier-answers.yaml b/.copier-answers.yaml
index 9df5eb5..da278c3 100644
--- a/.copier-answers.yaml
+++ b/.copier-answers.yaml
@@ -1,5 +1,5 @@
 # Changes here will be overwritten by Copier
-_commit: 9be318c
+_commit: '1246721'
 _src_path: https://github.com/python-project-templates/base.git
 add_docs: true
 add_extension: jupyter
diff --git a/.gitattributes b/.gitattributes
index bb7085b..aaf2698 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -7,7 +7,6 @@ Makefile linguist-documentation
 *.html text=auto eol=lf
 *.js text=auto eol=lf
 *.json text=auto eol=lf
-*.less text=auto eol=lf
 *.md text=auto eol=lf
 *.py text=auto eol=lf
 *.toml text=auto eol=lf
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index e02e344..46bfb47 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -76,7 +76,7 @@ jobs:
       if: matrix.os == 'ubuntu-latest'
 
     - name: Upload coverage
-      uses: codecov/codecov-action@v5
+      uses: codecov/codecov-action@v6
       with:
         token: ${{ secrets.CODECOV_TOKEN }}
 
diff --git a/js/jest.config.js b/js/jest.config.js
index 764a009..45f3f7b 100644
--- a/js/jest.config.js
+++ b/js/jest.config.js
@@ -18,7 +18,7 @@ const esModules = [
 module.exports = {
   moduleDirectories: ["node_modules", "src", "tests"],
   moduleNameMapper: {
-    "\\.(css|less|sass|scss)$": "<rootDir>/tests/styleMock.js",
+    "\\.(css|sass|scss)$": "<rootDir>/tests/styleMock.js",
     "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/tests/fileMock.js",
   },
   reporters: [ "default", "jest-junit" ],
@@ -26,7 +26,7 @@ module.exports = {
   testEnvironment: "jsdom",
   transform: {
     "^.+\\.jsx?$": "babel-jest",
-    ".+\\.(css|styl|less|sass|scss)$": "jest-transform-css",
+    ".+\\.(css|styl|sass|scss)$": "jest-transform-css",
   },
   transformIgnorePatterns: [`/node_modules/.pnpm/(?!(${esModules}))`],
 };