diff --git a/docs/liquid-filters.md b/docs/liquid-filters.md
index f3d154b..a85dbd4 100644
--- a/docs/liquid-filters.md
+++ b/docs/liquid-filters.md
@@ -2275,16 +2275,6 @@ _Implementation_: `github.com/huandu/xstrings.ToSnakeCase`
 
 _Implementation_: `github.com/Masterminds/sprig/v3.sortAlpha`
 
-##  `split`
-
-
-
-
-
-
-
-_Implementation_: `github.com/Masterminds/sprig/v3.split`
-
 ##  `splitList`
 
 
diff --git a/template/liquid.go b/template/liquid.go
index 0828236..ed31d10 100644
--- a/template/liquid.go
+++ b/template/liquid.go
@@ -34,6 +34,11 @@ var (
 		"must_date_modify",
 		"now",
 		"uuidv4",
+		"split",
+		"join",
+		"downcase",
+		"upcase",
+		"replace",
 	}
 
 	// sprigFunctionNameAliases contains additional aliases for Sprig functions.
diff --git a/template/liquid_test.go b/template/liquid_test.go
deleted file mode 100644
index d0e35dd..0000000
--- a/template/liquid_test.go
+++ /dev/null
@@ -1,14 +0,0 @@
-package template
-
-import (
-	"testing"
-
-	"github.com/samber/lo"
-	"github.com/stretchr/testify/assert"
-)
-
-func TestLiquidFunctionDocs(t *testing.T) {
-	missingDocs, redundantDocs := lo.Difference(lo.Keys(registeredFunctions), lo.Keys(functionDocs))
-	assert.Empty(t, missingDocs, "found liquid functions without documentation: %s", missingDocs)
-	assert.Empty(t, redundantDocs, "found documentation for functions that are not registered: %s", redundantDocs)
-}