diff --git a/03-working-with-data.html b/03-working-with-data.html
index 5754b07e..2f50561e 100644
--- a/03-working-with-data.html
+++ b/03-working-with-data.html
@@ -524,7 +524,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings are divided up with the pipe ( | )
 character</li>
@@ -555,7 +555,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings were previously delimited with the pipe (
 | ) character</li>
diff --git a/aio.html b/aio.html
index b0a635f2..9f110981 100644
--- a/aio.html
+++ b/aio.html
@@ -1055,7 +1055,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings are divided up with the pipe ( | )
@@ -1092,7 +1092,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings were previously delimited with the pipe (
diff --git a/instructor/02-importing-data.html b/instructor/02-importing-data.html
index 5a71600a..5b530390 100644
--- a/instructor/02-importing-data.html
+++ b/instructor/02-importing-data.html
@@ -447,7 +447,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>This is a good moment to review the points from <a href="01-introduction.html#what-should-i-know-when-working-with-openrefine">What
 Should I Know When Working with OpenRefine?</a></p>
@@ -481,7 +481,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
 <div class="accordion-body">
 <p>Carefully guide learners on how to revisit OpenRefine’s homepage to
 explore import options when creating new or re-opening existing
diff --git a/instructor/03-working-with-data.html b/instructor/03-working-with-data.html
index 75735b3f..90fe4d90 100644
--- a/instructor/03-working-with-data.html
+++ b/instructor/03-working-with-data.html
@@ -525,7 +525,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings are divided up with the pipe ( | )
 character</li>
@@ -556,7 +556,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>The subject words/headings were previously delimited with the pipe (
 | ) character</li>
diff --git a/instructor/06-working-with-columns.html b/instructor/06-working-with-columns.html
index 73ac9731..8d6b6b8d 100644
--- a/instructor/06-working-with-columns.html
+++ b/instructor/06-working-with-columns.html
@@ -395,7 +395,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Sorting and Reorder Rows Permanently
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>Do not rush these last two sentences. Repeat them slowly after a
 pause and allow learners to explore how sorting works for a moment.</p>
diff --git a/instructor/aio.html b/instructor/aio.html
index bdb02c91..4d4fd82a 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -787,7 +787,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>This is a good moment to review the points from <a href="01-introduction.html#what-should-i-know-when-working-with-openrefine">What
 Should I Know When Working with OpenRefine?</a></p>
@@ -826,7 +826,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
 <div class="accordion-body">
 <p>Carefully guide learners on how to revisit OpenRefine’s homepage to
 explore import options when creating new or re-opening existing
@@ -1087,7 +1087,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings are divided up with the pipe ( | )
@@ -1124,7 +1124,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>The subject words/headings were previously delimited with the pipe (
@@ -1653,7 +1653,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Sorting and Reorder Rows Permanently
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>Do not rush these last two sentences. Repeat them slowly after a
 pause and allow learners to explore how sorting works for a moment.</p>
diff --git a/pkgdown.yml b/pkgdown.yml
index 3879c88b..5c92a758 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-11-22T15:18Z
+last_built: 2023-11-22T17:35Z