diff --git a/renv/activate.R b/renv/activate.R
index c360bf29..0eb51088 100644
--- a/renv/activate.R
+++ b/renv/activate.R
@@ -2,7 +2,7 @@
 local({
 
   # the requested version of renv
-  version <- "1.0.9"
+  version <- "1.0.11"
   attr(version, "sha") <- NULL
 
   # the project directory
@@ -368,8 +368,7 @@ local({
       quiet    = TRUE
     )
   
-    if ("headers" %in% names(formals(utils::download.file)))
-    {
+    if ("headers" %in% names(formals(utils::download.file))) {
       headers <- renv_bootstrap_download_custom_headers(url)
       if (length(headers) && is.character(headers))
         args$headers <- headers
@@ -457,9 +456,8 @@ local({
   
         # add custom headers if available -- note that
         # utils::available.packages() will pass this to download.file()
-        if ("headers" %in% names(formals(utils::download.file)))
-        {
-          headers <- renv_bootstrap_download_custom_headers(url)
+        if ("headers" %in% names(formals(utils::download.file))) {
+          headers <- renv_bootstrap_download_custom_headers(repos)
           if (length(headers) && is.character(headers))
             args$headers <- headers
         }
diff --git a/renv/profiles/lesson-requirements/renv.lock b/renv/profiles/lesson-requirements/renv.lock
index d266f6ff..0aa4a9a5 100644
--- a/renv/profiles/lesson-requirements/renv.lock
+++ b/renv/profiles/lesson-requirements/renv.lock
@@ -62,7 +62,7 @@
     },
     "Matrix": {
       "Package": "Matrix",
-      "Version": "1.7-0",
+      "Version": "1.7-1",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -75,7 +75,7 @@
         "stats",
         "utils"
       ],
-      "Hash": "1920b2f11133b12350024297d8a4ff4a"
+      "Hash": "5122bb14d8736372411f955e1b16bc8a"
     },
     "R6": {
       "Package": "R6",
@@ -99,14 +99,14 @@
     },
     "Rcpp": {
       "Package": "Rcpp",
-      "Version": "1.0.13",
+      "Version": "1.0.13-1",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "methods",
         "utils"
       ],
-      "Hash": "f27411eb6d9c3dada5edd444b8416675"
+      "Hash": "6b868847b365672d6c1677b1608da9ed"
     },
     "base64enc": {
       "Package": "base64enc",
@@ -268,13 +268,13 @@
     },
     "evaluate": {
       "Package": "evaluate",
-      "Version": "1.0.0",
+      "Version": "1.0.1",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "R"
       ],
-      "Hash": "6b567375113ceb7d9f800de4dd42218e"
+      "Hash": "3fd29944b231036ad67c3edb32e02201"
     },
     "fansi": {
       "Package": "fansi",
@@ -316,14 +316,14 @@
     },
     "fs": {
       "Package": "fs",
-      "Version": "1.6.4",
+      "Version": "1.6.5",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "R",
         "methods"
       ],
-      "Hash": "15aeb8c27f5ea5161f9f6a641fafd93a"
+      "Hash": "7f48af39fa27711ea5fbd183b399920d"
     },
     "generics": {
       "Package": "generics",
@@ -374,7 +374,7 @@
     },
     "gtable": {
       "Package": "gtable",
-      "Version": "0.3.5",
+      "Version": "0.3.6",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -383,9 +383,10 @@
         "glue",
         "grid",
         "lifecycle",
-        "rlang"
+        "rlang",
+        "stats"
       ],
-      "Hash": "e18861963cbc65a27736e02b3cd3c4a0"
+      "Hash": "de949855009e2d4d0e52a844e30617ae"
     },
     "highr": {
       "Package": "highr",
@@ -445,7 +446,7 @@
     },
     "igraph": {
       "Package": "igraph",
-      "Version": "2.0.3",
+      "Version": "2.1.1",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -464,7 +465,7 @@
         "utils",
         "vctrs"
       ],
-      "Hash": "c3b7d801d722e26e4cd888e042bf9af5"
+      "Hash": "c03878b48737a0e2da3b772d7b2e22da"
     },
     "isoband": {
       "Package": "isoband",
@@ -737,13 +738,13 @@
     },
     "renv": {
       "Package": "renv",
-      "Version": "1.0.9",
+      "Version": "1.0.11",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "utils"
       ],
-      "Hash": "ef233f0e9064fc88c898b340c9add5c2"
+      "Hash": "47623f66b4e80b3b0587bc5d7b309888"
     },
     "rlang": {
       "Package": "rlang",
@@ -758,7 +759,7 @@
     },
     "rmarkdown": {
       "Package": "rmarkdown",
-      "Version": "2.28",
+      "Version": "2.29",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -777,14 +778,14 @@
         "xfun",
         "yaml"
       ],
-      "Hash": "062470668513dcda416927085ee9bdc7"
+      "Hash": "df99277f63d01c34e95e3d2f06a79736"
     },
     "rstudioapi": {
       "Package": "rstudioapi",
-      "Version": "0.16.0",
+      "Version": "0.17.1",
       "Source": "Repository",
       "Repository": "CRAN",
-      "Hash": "96710351d642b70e8f02ddeb237c46a7"
+      "Hash": "5f90cd73946d706cfe26024294236113"
     },
     "sass": {
       "Package": "sass",
@@ -910,13 +911,13 @@
     },
     "tinytex": {
       "Package": "tinytex",
-      "Version": "0.53",
+      "Version": "0.54",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
         "xfun"
       ],
-      "Hash": "9db859e8aabbb474293dde3097839420"
+      "Hash": "3ec7e3ddcacc2d34a9046941222bf94d"
     },
     "tzdb": {
       "Package": "tzdb",
@@ -1009,7 +1010,7 @@
     },
     "withr": {
       "Package": "withr",
-      "Version": "3.0.1",
+      "Version": "3.0.2",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -1017,11 +1018,11 @@
         "grDevices",
         "graphics"
       ],
-      "Hash": "07909200e8bbe90426fbfeb73e1e27aa"
+      "Hash": "cc2d62c76458d425210d1eb1478b30b4"
     },
     "xfun": {
       "Package": "xfun",
-      "Version": "0.47",
+      "Version": "0.49",
       "Source": "Repository",
       "Repository": "CRAN",
       "Requirements": [
@@ -1030,7 +1031,7 @@
         "stats",
         "tools"
       ],
-      "Hash": "36ab21660e2d095fef0d83f689e0477c"
+      "Hash": "8687398773806cfff9401a2feca96298"
     },
     "yaml": {
       "Package": "yaml",