diff --git a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3.ipynb b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3.ipynb
index 070e6b1d350b0689ead4388ec58d633ac238f56e..e8d1293ec03ba20dfd707b355e5d9359debabccc 100644
--- a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3.ipynb
+++ b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3.ipynb
@@ -61,7 +61,7 @@
    "metadata": {},
    "source": [
     "### Warmup 2: Scraping data from syllabus page\n",
-    "URL: https://cs220.cs.wisc.edu/s23/syllabus.html"
+    "URL: https://cs220.cs.wisc.edu/f23/syllabus.html"
    ]
   },
   {
@@ -868,7 +868,7 @@
    ],
    "source": [
     "# Get this page using requests.  \n",
-    "url = \"https://cs220.cs.wisc.edu/s23/syllabus.html\"\n",
+    "url = \"https://cs220.cs.wisc.edu/f23/syllabus.html\"\n",
     "r = requests.get(url)\n",
     "\n",
     "# make sure there is no error\n",
diff --git a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec1.ipynb b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec1.ipynb
index 09a61d301abe29b0540d092d167f54b0af5c6f86..5ecd1c5005e2786709e2c8a56d007ef843c7f63e 100644
--- a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec1.ipynb
+++ b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec1.ipynb
@@ -61,7 +61,7 @@
    "metadata": {},
    "source": [
     "### Warmup 2: Scraping data from syllabus page\n",
-    "URL: https://cs220.cs.wisc.edu/s23/syllabus.html"
+    "URL: https://cs220.cs.wisc.edu/f23/syllabus.html"
    ]
   },
   {
@@ -557,7 +557,7 @@
    "outputs": [],
    "source": [
     "# Get this page using requests.  \n",
-    "url = \"https://cs220.cs.wisc.edu/s23/syllabus.html\"\n",
+    "url = \"https://cs220.cs.wisc.edu/f23/syllabus.html\"\n",
     "\n",
     "# make sure there is no error\n",
     "\n",
diff --git a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec2.ipynb b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec2.ipynb
index 09a61d301abe29b0540d092d167f54b0af5c6f86..5ecd1c5005e2786709e2c8a56d007ef843c7f63e 100644
--- a/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec2.ipynb
+++ b/f23/Gurmail_Lecture_Notes/31_Web-3/lec_31_web3_template_Gurmail_lec2.ipynb
@@ -61,7 +61,7 @@
    "metadata": {},
    "source": [
     "### Warmup 2: Scraping data from syllabus page\n",
-    "URL: https://cs220.cs.wisc.edu/s23/syllabus.html"
+    "URL: https://cs220.cs.wisc.edu/f23/syllabus.html"
    ]
   },
   {
@@ -557,7 +557,7 @@
    "outputs": [],
    "source": [
     "# Get this page using requests.  \n",
-    "url = \"https://cs220.cs.wisc.edu/s23/syllabus.html\"\n",
+    "url = \"https://cs220.cs.wisc.edu/f23/syllabus.html\"\n",
     "\n",
     "# make sure there is no error\n",
     "\n",