diff --git a/CHANGES.md b/CHANGES.md
index 9a8dc9286f9..563b9b10aed 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -20,14 +20,28 @@ To be released.
 
 ### Bug fixes
 
+### Dependencies
+
+### CLI tools
+
+
+Version 5.3.1
+-------------
+
+Released on October 14, 2024.
+
 ### Dependencies
 
  -  (Libplanet.Extensions.Cocona) Changed *System.Text.Json* from [6.0.7] to
-    [6.0.*].  [[#3966]]
+    [6.0.*].  [[#3967]]
+ -  Changed *BouncyCastle.Cryptography* from
+    [2.0.0] to [2.4.0].  [[#3968]]
+ -  (Libplanet.Crypto) Changed *BouncyCastle.Cryptography* from
+    [2.0.0] to [2.4.0].  [[#3968]]
 
-### CLI tools
 
-[#3966]: https://github.com/planetarium/libplanet/pull/3966
+[#3967]: https://github.com/planetarium/libplanet/pull/3967
+[#3968]: https://github.com/planetarium/libplanet/pull/3968
 
 
 Version 5.3.0
diff --git a/src/Libplanet.Crypto/Libplanet.Crypto.csproj b/src/Libplanet.Crypto/Libplanet.Crypto.csproj
index 1d0792fc03f..7ea3441fd03 100644
--- a/src/Libplanet.Crypto/Libplanet.Crypto.csproj
+++ b/src/Libplanet.Crypto/Libplanet.Crypto.csproj
@@ -4,7 +4,7 @@
     <PackageReference Include="System.Collections.Immutable" Version="1.*" />
     <PackageReference Include="System.Text.Json" Version="6.0.*" />
     <PackageReference Include="Bencodex" Version="0.16.0" />
-    <PackageReference Include="BouncyCastle.Cryptography" Version="2.0.0" />
+    <PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(SkipSonar)' != 'true'">
diff --git a/src/Libplanet/Libplanet.csproj b/src/Libplanet/Libplanet.csproj
index bbe43bdd387..e7c328d29bc 100644
--- a/src/Libplanet/Libplanet.csproj
+++ b/src/Libplanet/Libplanet.csproj
@@ -22,7 +22,7 @@ https://docs.libplanet.io/</Description>
     <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="8.0.0" />
     <PackageReference Include="System.Text.Json" Version="6.0.*" />
     <PackageReference Include="Bencodex" Version="0.16.0" />
-    <PackageReference Include="BouncyCastle.Cryptography" Version="2.0.0" />
+    <PackageReference Include="BouncyCastle.Cryptography" Version="2.4.0" />
     <PackageReference Include="Serilog" Version="2.8.0" />
     <PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
     <PackageReference Include="Norgerman.Cryptography.Scrypt" Version="2.0.1" />