diff --git a/src/lib.rs b/src/lib.rs
index 237a3f7..1e6f3d3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -16,7 +16,7 @@ use crate::kana_transliteration::{
 
 use crate::text_normalization::normalize_japanese_text;
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn hiragana_to_katakana(ctx: &mut Context, args: &mut [&mut ValueRef]) -> Result<()> {
     if args[0].value_type() != ValueType::Text {
         return Err(sqlite3_ext::Error::Module(
@@ -30,7 +30,7 @@ fn hiragana_to_katakana(ctx: &mut Context, args: &mut [&mut ValueRef]) -> Result
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn katakana_to_hiragana(ctx: &mut Context, args: &mut [&mut ValueRef]) -> Result<()> {
     if args[0].value_type() != ValueType::Text {
         return Err(sqlite3_ext::Error::Module(
@@ -44,7 +44,7 @@ fn katakana_to_hiragana(ctx: &mut Context, args: &mut [&mut ValueRef]) -> Result
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn fullwidth_romaji_to_halfwidth_romaji(
     ctx: &mut Context,
     args: &mut [&mut ValueRef],
@@ -61,7 +61,7 @@ fn fullwidth_romaji_to_halfwidth_romaji(
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn halfwidth_romaji_to_fullwidth_romaji(
     ctx: &mut Context,
     args: &mut [&mut ValueRef],
@@ -78,7 +78,7 @@ fn halfwidth_romaji_to_fullwidth_romaji(
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn fullwidth_katakana_to_halfwidth_katakana(
     ctx: &mut Context,
     args: &mut [&mut ValueRef],
@@ -95,7 +95,7 @@ fn fullwidth_katakana_to_halfwidth_katakana(
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn halfwidth_katakana_to_fullwidth_katakana(
     ctx: &mut Context,
     args: &mut [&mut ValueRef],
@@ -112,7 +112,7 @@ fn halfwidth_katakana_to_fullwidth_katakana(
     Ok(())
 }
 
-#[sqlite3_ext_fn(n_args = 1, deterministic)]
+#[sqlite3_ext_fn(n_args = 1, deterministic, risk_level=Innocuous)]
 fn normalize_jp(ctx: &mut Context, args: &mut [&mut ValueRef]) -> Result<()> {
     if args[0].value_type() != ValueType::Text {
         return Err(sqlite3_ext::Error::Module(