diff --git a/src/country-by-landlocked.json b/src/country-by-landlocked.json
index c49ae7ba..5ef38ddd 100644
--- a/src/country-by-landlocked.json
+++ b/src/country-by-landlocked.json
@@ -857,7 +857,7 @@
     },
     {
         "country": "The Democratic Republic of Congo",
-        "landlocked": null
+        "landlocked": "0"
     },
     {
         "country": "Togo",
diff --git a/src/country-by-religion.json b/src/country-by-religion.json
index 40248510..ff5f3fdf 100644
--- a/src/country-by-religion.json
+++ b/src/country-by-religion.json
@@ -419,6 +419,10 @@
         "country": "Italy",
         "religion": "Christianity"
     },
+    {
+        "country": "Ivory Coast",
+        "landlocked": "Islam"
+    },
     {
         "country": "Jamaica",
         "religion": "Christianity"
@@ -639,6 +643,10 @@
         "country": "North Korea",
         "religion": "Unaffiliated Religions"
     },
+    {
+        "country": "North Macedonia",
+        "religion": "Christianity"
+    },
     {
         "country": "Northern Mariana Islands",
         "religion": "Christianity"
diff --git a/src/country-by-yearly-average-temperature.json b/src/country-by-yearly-average-temperature.json
index 1322bf7c..bafc59e8 100644
--- a/src/country-by-yearly-average-temperature.json
+++ b/src/country-by-yearly-average-temperature.json
@@ -763,6 +763,10 @@
         "country": "Senegal",
         "temperature": 28.9
     },
+    {
+        "country": "Serbia",
+        "temperature": 11.4
+    },
     {
         "country": "Seychelles",
         "temperature": 27.09