diff --git a/CHANGELOG.md b/CHANGELOG.md
index 387ae30..c2ea5cf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+## [0.4.4] - 2024-03-21
+
+- Fixed `quill sns make-proposal` setting some fields to null.
+
 ## [0.4.3] - 2024-01-29
 
 - Updated dependencies.
diff --git a/Cargo.lock b/Cargo.lock
index 60b1d99..7b83b05 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -616,9 +616,9 @@ dependencies = [
 
 [[package]]
 name = "candid"
-version = "0.10.2"
+version = "0.10.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39be580be172631a35cac2fc6c765f365709de459edb88121b3e7a80cce6c1ec"
+checksum = "088c2e3d22a0fb1ada78b968946b0f7b96027ac8669973fe7c0815a98e8d13ef"
 dependencies = [
  "anyhow",
  "binread",
@@ -639,9 +639,9 @@ dependencies = [
 
 [[package]]
 name = "candid_derive"
-version = "0.6.5"
+version = "0.6.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "970c220da8aa2fa6f7ef5dbbf3ea5b620a59eb3ac107cfb95ae8c6eebdfb7a08"
+checksum = "3de398570c386726e7a59d9887b68763c481477f9a043fb998a2e09d428df1a9"
 dependencies = [
  "lazy_static",
  "proc-macro2",
@@ -651,9 +651,9 @@ dependencies = [
 
 [[package]]
 name = "candid_parser"
-version = "0.1.2"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36381de3ba8a312deb028552c0d63f7c7fe6e204f44bae4c58a3643308cfa9d5"
+checksum = "48a3da76f989cd350b7342c64c6c6008341bb6186f6832ef04e56dc50ba0fd76"
 dependencies = [
  "anyhow",
  "candid",
@@ -4477,7 +4477,7 @@ checksum = "4339fc7a1021c9c1621d87f5e3505f2805c8c105420ba2f2a4df86814590c142"
 
 [[package]]
 name = "quill"
-version = "0.4.3"
+version = "0.4.4"
 dependencies = [
  "anyhow",
  "atty",
diff --git a/Cargo.toml b/Cargo.toml
index 089ab5f..b910894 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "quill"
-version = "0.4.3"
+version = "0.4.4"
 authors = ["DFINITY Team"]
 edition = "2021"
 rust-version = "1.75.0"
diff --git a/src/commands/sns/make_proposal.rs b/src/commands/sns/make_proposal.rs
index 86b4322..37470f3 100644
--- a/src/commands/sns/make_proposal.rs
+++ b/src/commands/sns/make_proposal.rs
@@ -8,7 +8,7 @@ use crate::{
     AnyhowResult,
 };
 use anyhow::Error;
-use candid::{Decode, Encode};
+use candid::{CandidType, Decode, Encode, TypeEnv};
 use candid_parser::parse_idl_args;
 use clap::Parser;
 use ic_sns_governance::pb::v1::{manage_neuron, ManageNeuron, Proposal};
@@ -85,6 +85,6 @@ pub fn exec(
 
 fn parse_proposal_from_candid_string(proposal_candid: String) -> AnyhowResult<Proposal> {
     let args = parse_idl_args(&proposal_candid)?;
-    let args: Vec<u8> = args.to_bytes()?;
+    let args: Vec<u8> = args.to_bytes_with_types(&TypeEnv::default(), &[Proposal::ty()])?;
     Decode!(args.as_slice(), Proposal).map_err(Error::msg)
 }
diff --git a/tests/output/default/sns/make_proposal/with_blob.txt b/tests/output/default/sns/make_proposal/with_blob.txt
new file mode 100644
index 0000000..eb55a6e
--- /dev/null
+++ b/tests/output/default/sns/make_proposal/with_blob.txt
@@ -0,0 +1,29 @@
+Sending message with
+
+  Call type:   update
+  Sender:      fdsgv-62ihb-nbiqv-xgic5-iefsv-3cscz-tmbzv-63qd5-vh43v-dqfrt-pae
+  Canister id: rrkah-fqaaa-aaaaa-aaaaq-cai
+  Method name: manage_neuron
+  Arguments:   (
+  record {
+    subaccount = blob "\83\a7\d2\b1\2f\65\4f\f5\83\35\e5\a2\51\2c\ca\e0\d7\83\9c\74\4b\18\07\a4\7c\96\f5\b9\f3\96\90\69";
+    command = opt variant {
+      MakeProposal = record {
+        url = "example.com";
+        title = "Transfer ICP from SNS treasury.";
+        action = opt variant {
+          TransferSnsTreasuryFunds = record {
+            from_treasury = 1 : int32;
+            to_principal = opt principal "rrkah-fqaaa-aaaaa-aaaaq-cai";
+            to_subaccount = opt record {
+              subaccount = blob "\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\00\01";
+            };
+            memo = null;
+            amount_e8s = 1_000_000_000 : nat64;
+          }
+        };
+        summary = "";
+      }
+    };
+  },
+)
diff --git a/tests/output/sns.rs b/tests/output/sns.rs
index 233de83..8049ad7 100644
--- a/tests/output/sns.rs
+++ b/tests/output/sns.rs
@@ -110,6 +110,23 @@ fn make_proposal() {
         "sns make-proposal {NEURON_ID} --proposal '{proposal}'"
     ))
     .diff("sns/make_proposal/simple.txt");
+    let proposal_with_blob = r#"
+    ( record {
+        title = "Transfer ICP from SNS treasury.";
+        url = "example.com";
+        summary = "";
+        action = opt variant { TransferSnsTreasuryFunds = record {
+            from_treasury = 1 : int32;
+            to_principal = opt principal "rrkah-fqaaa-aaaaa-aaaaq-cai";
+            to_subaccount = opt record { subaccount = vec {0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;1} };
+            memo = null;
+            amount_e8s = 1_000_000_000: nat64
+        } };
+    } )"#;
+    quill_sns_send(&format!(
+        "sns make-proposal {NEURON_ID} --proposal '{proposal_with_blob}'"
+    ))
+    .diff("sns/make_proposal/with_blob.txt");
     let proposal_bin = asset("sns_proposal.bin");
     quill_sns_send(&format!(
         "sns make-proposal {NEURON_ID} --proposal-path '{proposal_bin}'",