diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index e630049..eb39547 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,4 +1,4 @@
 [toolchain]
-channel = "1.98.1"
+channel = "1.99.0"
 profile = "minimal"
 components = ["clippy", "rustfmt"]
diff --git a/src/config/models.rs b/src/config/models.rs
index 3a36945..3b62fc9 100644
--- a/src/config/models.rs
+++ b/src/config/models.rs
@@ -1109,7 +1109,7 @@ mod tests {
         assert_eq!(app.process_name, expected_process_name);
         assert_eq!(app.exe_path, current_exe);
         assert!(app.enabled); // Should default to enabled
-        assert!(!app.display_name.is_empty()); // Should have a display name
+        assert_ne!(app.display_name, ""); // Should have a display name
     }
 
     #[test]
@@ -1267,8 +1267,8 @@ mod tests {
         let app = result.unwrap();
 
         // Should have basic metadata
-        assert!(!app.display_name.is_empty());
-        assert!(!app.process_name.is_empty());
+        assert_ne!(app.display_name, "");
+        assert_ne!(app.process_name, "");
         assert_eq!(app.exe_path, current_exe);
     }
 
diff --git a/src/utils/icon_extractor.rs b/src/utils/icon_extractor.rs
index d413494..812ea16 100644
--- a/src/utils/icon_extractor.rs
+++ b/src/utils/icon_extractor.rs
@@ -557,7 +557,7 @@ mod tests {
         let result = extract_display_name_from_exe(&path);
         assert!(result.is_ok());
         let name = result.unwrap();
-        assert!(!name.is_empty());
+        assert_ne!(name, "");
     }
 
     #[test]
diff --git a/tests/memory_usage_test.rs b/tests/memory_usage_test.rs
index 8568ec2..4b619b8 100644
--- a/tests/memory_usage_test.rs
+++ b/tests/memory_usage_test.rs
@@ -125,15 +125,9 @@ fn test_memory_stats_within_limits() {
     };
 
     assert!(stats.is_within_limits());
-    // Allow exact float comparison: values are constructed to be exact multiples
-    #[expect(
-        clippy::float_cmp,
-        reason = "Values are constructed as exact multiples of 1024*1024, so float comparison is precise"
-    )]
-    {
-        assert_eq!(stats.total_mb(), 40.0);
-        assert_eq!(stats.icon_cache_mb(), 5.0);
-    }
+    // Exact float comparison is precise: values are exact multiples of 1024*1024
+    assert_eq!(stats.total_mb(), 40.0);
+    assert_eq!(stats.icon_cache_mb(), 5.0);
 }
 
 #[test]
@@ -148,14 +142,8 @@ fn test_memory_stats_exceeds_limits() {
     };
 
     assert!(!stats.is_within_limits());
-    // Allow exact float comparison: value is constructed to be exact multiple
-    #[expect(
-        clippy::float_cmp,
-        reason = "Value is constructed as exact multiple of 1024*1024, so float comparison is precise"
-    )]
-    {
-        assert_eq!(stats.total_mb(), 60.0);
-    }
+    // Exact float comparison is precise: the value is an exact multiple of 1024*1024
+    assert_eq!(stats.total_mb(), 60.0);
 }
 
 #[test]