diff --git a/.Rprofile b/.Rprofile
index 81b960f..8f9cf68 100644
--- a/.Rprofile
+++ b/.Rprofile
@@ -1 +1,9 @@
+## Set repos options ----
+options(
+  repos = c(
+    CRAN = "https://cloud.r-project.org",
+    IHTM = "https://oxfordihtm.r-universe.dev"
+  )
+)
+
 source("renv/activate.R")
diff --git a/renv.lock b/renv.lock
index 66a1852..6e75ed0 100644
--- a/renv.lock
+++ b/renv.lock
@@ -471,7 +471,7 @@
     },
     "data.table": {
       "Package": "data.table",
-      "Version": "1.17.6",
+      "Version": "1.17.8",
       "Source": "Repository",
       "Title": "Extension of `data.frame`",
       "Depends": [