diff --git a/Cargo.lock b/Cargo.lock
index 4411be0c6ac..c430601f271 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
+version = 4
 
 [[package]]
 name = "ab_glyph"
@@ -539,12 +539,6 @@ dependencies = [
  "windows-targets 0.52.6",
 ]
 
-[[package]]
-name = "base64"
-version = "0.21.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d297deb1925b89f2ccc13d7635fa0714f12c87adce1c75356b39ca9b7178567"
-
 [[package]]
 name = "base64"
 version = "0.22.1"
@@ -3153,7 +3147,7 @@ version = "1.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "42cf17e9a1800f5f396bc67d193dc9411b59012a5876445ef450d449881e1016"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "indexmap",
  "quick-xml 0.32.0",
  "serde",
@@ -3542,14 +3536,15 @@ dependencies = [
 
 [[package]]
 name = "ron"
-version = "0.8.1"
+version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b91f7eff05f748767f183df4320a63d6936e9c6107d97c9e6bdd9784f4289c94"
+checksum = "beceb6f7bf81c73e73aeef6dd1356d9a1b2b4909e1f0fc3e59b034f9572d7b7f"
 dependencies = [
- "base64 0.21.7",
+ "base64",
  "bitflags 2.8.0",
  "serde",
  "serde_derive",
+ "unicode-ident",
 ]
 
 [[package]]
@@ -4344,7 +4339,7 @@ version = "2.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b74fc6b57825be3373f7054754755f03ac3a8f5d70015ccad699ba2029956f4a"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "flate2",
  "log",
  "once_cell",
@@ -4386,7 +4381,7 @@ version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2ac8e0e3e4696253dc06167990b3fe9a2668ab66270adf949a464db4088cb354"
 dependencies = [
- "base64 0.22.1",
+ "base64",
  "data-url",
  "flate2",
  "fontdb",
diff --git a/Cargo.toml b/Cargo.toml
index 80fee9f744e..3b306176bfe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -94,7 +94,7 @@ profiling = { version = "1.0.16", default-features = false }
 puffin = "0.19"
 puffin_http = "0.16"
 raw-window-handle = "0.6.0"
-ron = "0.8"
+ron = "0.10.1"
 serde = { version = "1", features = ["derive"] }
 similar-asserts = "1.4.2"
 thiserror = "1.0.37"
diff --git a/crates/eframe/src/native/file_storage.rs b/crates/eframe/src/native/file_storage.rs
index fa89b90592c..e1fdc9b84ba 100644
--- a/crates/eframe/src/native/file_storage.rs
+++ b/crates/eframe/src/native/file_storage.rs
@@ -207,7 +207,8 @@ fn save_to_disk(file_path: &PathBuf, kv: &HashMap<String, String>) {
             let config = Default::default();
 
             profiling::scope!("ron::serialize");
-            if let Err(err) = ron::ser::to_writer_pretty(&mut writer, &kv, config)
+            if let Err(err) = ron::Options::default()
+                .to_io_writer_pretty(&mut writer, &kv, config)
                 .and_then(|_| writer.flush().map_err(|err| err.into()))
             {
                 log::warn!("Failed to serialize app state: {}", err);
diff --git a/deny.toml b/deny.toml
index 2f7bdbcca0a..f77dd452247 100644
--- a/deny.toml
+++ b/deny.toml
@@ -45,7 +45,6 @@ deny = [
 ]
 
 skip = [
-  { name = "base64" },         # Pretty small
   { name = "bit-set" },        # wgpu's naga depends on 0.8, syntect's (used by egui_extras) fancy-regex depends on 0.5
   { name = "bit-vec" },        # dependency of bit-set in turn, different between 0.6 and 0.5
   { name = "bitflags" },       # old 1.0 version via glutin, png, spirv, …