diff --git a/.github/workflows/update-currency-codes.yaml b/.github/workflows/update-currency-codes.yaml
index c49ef4da..9dace550 100644
--- a/.github/workflows/update-currency-codes.yaml
+++ b/.github/workflows/update-currency-codes.yaml
@@ -1,6 +1,7 @@
 name: Update currency codes
 
 on:
+  workflow_dispatch:
   schedule:
     - cron:  '0 0 * * 0'
 
diff --git a/.github/workflows/update-language-codes.yaml b/.github/workflows/update-language-codes.yaml
index d89d776d..cbf4dd3b 100644
--- a/.github/workflows/update-language-codes.yaml
+++ b/.github/workflows/update-language-codes.yaml
@@ -1,6 +1,7 @@
 name: Update language codes
 
 on:
+  workflow_dispatch:
   schedule:
     - cron:  '0 0 * * 0'
 
diff --git a/.github/workflows/update-tld.yaml b/.github/workflows/update-tld.yaml
index 310d039c..80b4a073 100644
--- a/.github/workflows/update-tld.yaml
+++ b/.github/workflows/update-tld.yaml
@@ -1,8 +1,9 @@
 name: Update top-level domains
 
 on:
+  workflow_dispatch:
   schedule:
-    - cron:  '0 0 * * 0'
+    - cron:  '0 0 * * *'
 
 jobs:
   update-tld:
diff --git a/bin/update-iso-codes b/bin/update-iso-codes
index 3aceb25d..433e3b4b 100755
--- a/bin/update-iso-codes
+++ b/bin/update-iso-codes
@@ -11,9 +11,9 @@ declare -r LIBRARY_DIRECTORY="library"
 
 clone_repository()
 {
+  echo "Cloning repository ${REPOSITORY_URL}"
   if ! test -d "$REPOSITORY_DIRECTORY"
   then
-    echo "Cloning repository ${REPOSITORY_URL}"
     git clone --quiet "${REPOSITORY_URL}" "${REPOSITORY_DIRECTORY}"
   fi
 }
@@ -65,6 +65,10 @@ update_subdivision_codes()
   local last_country_code=""
   local last_country_rule=""
 
+  rm -rf data/iso_3166-2/*
+
+  echo "Updating subdivision codes using ISO 3166-2"
+
   for index in $(seq 0 $[iso_3166_1_count - 1]); do
     local json=$(jq ".[][${index}]" < "${iso_3166_1_filename}")
     local alpha_1="$(jq ".alpha_2" <<< "${json}" | tr -d '"')"
@@ -89,26 +93,6 @@ update_subdivision_codes()
     echo "  }
 }" >> "data/iso_3166-2/${alpha_1}.json"
   done
-
-  return
-
-  
-
-  echo "Updating subdivision codes using ISO 3166-2"
-
-  for index in $(seq 0 $[iso_3166_2_count - 1]); do
-    local json=$(jq ".[][${index}]" < "${iso_3166_2_filename}")
-    local code=$(jq -r ".code" <<< "${json}")
-    local name=$(jq -r ".name" <<< "${json}")
-
-    local current_country_code=$(cut --delimiter "-" --fields 1 <<< "${code}")
-
-    if [[ ${last_country_code} != ${current_country_code} ]]; then
-      echo "- Updating ${current_country_code}"
-    fi
-
-    last_country_code=${current_country_code}
-  done
 }
 
 clone_repository
diff --git a/data/iso_3166-2/AN.json b/data/iso_3166-2/AN.json
deleted file mode 100644
index acecdba3..00000000
--- a/data/iso_3166-2/AN.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "source": "http://www.geonames.org/AN/administrative-division-netherlands-antilles.html",
-  "country": "Netherlands Antilles",
-  "subdivisions": []
-}
diff --git a/data/iso_3166-2/CS.json b/data/iso_3166-2/CS.json
deleted file mode 100644
index 85f4efc6..00000000
--- a/data/iso_3166-2/CS.json
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "source": "http://www.geonames.org/CS/administrative-division-serbia-and-montenegro.html",
-  "country": "Serbia And Montenegro",
-  "subdivisions": {
-    "KOS": "Kosovo",
-    "MON": "Montenegro",
-    "SER": "Serbia",
-    "VOJ": "Vojvodina"
-  }
-}
diff --git a/data/iso_3166-2/XK.json b/data/iso_3166-2/XK.json
deleted file mode 100644
index 306c2638..00000000
--- a/data/iso_3166-2/XK.json
+++ /dev/null
@@ -1,5 +0,0 @@
-{
-  "source": "http://www.geonames.org/XK/administrative-division-kosovo.html",
-  "country": "Kosovo",
-  "subdivisions": []
-}