diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1563f9..aef0a95 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,11 @@ All notable changes to this project will be documented in this file.  The format
 [comment]: <> (Fixed:      any bug fixes)
 [comment]: <> (Security:   in case of vulnerabilities)
 
+## [1.1.1]
+
+### Fixed
+* Skip `block_identifier` param if `Hash` value is `null` in RPC requests to be compatible with Casper node v150.
+
 ## [1.1.0]
 
 ### Added
@@ -28,5 +33,6 @@ All notable changes to this project will be documented in this file.  The format
 ### Added
 * Initial release of Casper .NET SDK.
 
+[1.1.1]: https://github.com/make-software/casper-net-sdk/releases/tag/v1.1.1
 [1.1.0]: https://github.com/make-software/casper-net-sdk/releases/tag/v1.1.0
 [1.0.0]: https://github.com/make-software/casper-net-sdk/releases/tag/v1.0.0
diff --git a/Casper.Network.SDK/Casper.Network.SDK.csproj b/Casper.Network.SDK/Casper.Network.SDK.csproj
index 7fbcff5..699e5d0 100644
--- a/Casper.Network.SDK/Casper.Network.SDK.csproj
+++ b/Casper.Network.SDK/Casper.Network.SDK.csproj
@@ -2,9 +2,9 @@
 
     <PropertyGroup>
         <TargetFramework>net5.0</TargetFramework>
-        <AssemblyVersion>1.1.0.0</AssemblyVersion>
-        <FileVersion>1.1.0</FileVersion>
-        <PackageVersion>1.1.0</PackageVersion>
+        <AssemblyVersion>1.1.1.0</AssemblyVersion>
+        <FileVersion>1.1.1</FileVersion>
+        <PackageVersion>1.1.1</PackageVersion>
         <Title>Casper.Network.SDK</Title>
         <Authors>make-software</Authors>
         <PackageProjectUrl>https://github.com/make-software/casper-net-sdk</PackageProjectUrl>
@@ -20,7 +20,7 @@
     </PropertyGroup>
 
     <ItemGroup>
-      <PackageReference Include="BouncyCastle.NetCore" Version="1.8.8" />
+      <PackageReference Include="BouncyCastle.NetCore" Version="1.9.0" />
     </ItemGroup>
 
     <ItemGroup>