diff --git a/src/decoder/sorted_set.rs b/src/decoder/sorted_set.rs
index a02e045..a9561a5 100644
--- a/src/decoder/sorted_set.rs
+++ b/src/decoder/sorted_set.rs
@@ -30,9 +30,16 @@ pub fn read_sorted_set<R: Read>(
                 255 => f64::NEG_INFINITY,
                 _ => {
                     let tmp = read_exact(input, score_length as usize)?;
-                    unsafe { str::from_utf8_unchecked(&tmp) }
+                    str::from_utf8(&tmp)
+                        .map_err(|_| RdbError::ParsingError {
+                            context: "read_sorted_set",
+                            message: "Invalid UTF-8 in score".to_string(),
+                        })?
                         .parse::<f64>()
-                        .unwrap()
+                        .map_err(|_| RdbError::ParsingError {
+                            context: "read_sorted_set",
+                            message: "Invalid score format".to_string(),
+                        })?
                 }
             }
         };
@@ -105,7 +112,14 @@ pub fn read_sorted_set_listpack<R: Read>(
         let member = read_list_pack_entry_as_string(&mut reader)?;
         let score_str = read_list_pack_entry_as_string(&mut reader)?;
 
-        let score = unsafe { str::from_utf8_unchecked(&score_str) }
+        let score = str::from_utf8(&score_str)
+            .map_err(|_| RdbError::ParsingError {
+                context: "read_sorted_set_listpack",
+                message: format!(
+                    "Failed to parse score: {:?}",
+                    String::from_utf8_lossy(&score_str)
+                ),
+            })?
             .parse::<f64>()
             .map_err(|_| RdbError::ParsingError {
                 context: "read_sorted_set_listpack",
diff --git a/src/filter.rs b/src/filter.rs
index ecf8dd5..e7b595d 100644
--- a/src/filter.rs
+++ b/src/filter.rs
@@ -61,8 +61,10 @@ impl Filter for Simple {
         match self.keys.clone() {
             None => true,
             Some(re) => {
-                let key = unsafe { str::from_utf8_unchecked(key) };
-                re.is_match(key)
+                match str::from_utf8(key) {
+                    Ok(key_str) => re.is_match(key_str),
+                    Err(_) => false
+                }
             }
         }
     }