diff --git a/Example/IrohaCommunication.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/Example/IrohaCommunication.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 000000000..18d981003
--- /dev/null
+++ b/Example/IrohaCommunication.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/Example/Podfile.lock b/Example/Podfile.lock
index f17e4b2a4..856e25762 100755
--- a/Example/Podfile.lock
+++ b/Example/Podfile.lock
@@ -42,7 +42,7 @@ DEPENDENCIES:
   - IrohaCommunication (from `../`)
 
 SPEC REPOS:
-  https://github.com/cocoapods/specs.git:
+  https://github.com/CocoaPods/Specs.git:
     - BoringSSL
     - gRPC
     - gRPC-Core
@@ -69,4 +69,4 @@ SPEC CHECKSUMS:
 
 PODFILE CHECKSUM: 29089a97c3781ec366ef8266addf4289525ff849
 
-COCOAPODS: 1.7.5
+COCOAPODS: 1.8.0
diff --git a/IrohaCommunication.podspec b/IrohaCommunication.podspec
index 9f23c3eaf..106fd5d3b 100755
--- a/IrohaCommunication.podspec
+++ b/IrohaCommunication.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'IrohaCommunication'
-  s.version          = '3.4.0'
+  s.version          = '3.4.1'
   s.summary          = 'Helper classes to use for communication with Iroha blockchain.'
 
   s.homepage         = 'https://github.com/hyperledger/iroha-ios'
diff --git a/IrohaCommunication/Classes/Public/Service/IRNetworkService.m b/IrohaCommunication/Classes/Public/Service/IRNetworkService.m
index 7fa7d3563..6ce618d98 100755
--- a/IrohaCommunication/Classes/Public/Service/IRNetworkService.m
+++ b/IrohaCommunication/Classes/Public/Service/IRNetworkService.m
@@ -9,11 +9,11 @@
 #import "IRTransactionImpl.h"
 #import "Transaction.pbobjc.h"
 #import "IRTransactionStatusResponseImpl+Proto.h"
-#import "GRPCCall+Tests.h"
 #import "IRQueryResponse+Proto.h"
 #import "IRBlockQueryRequestImpl.h"
 #import "IRBlockQueryResponse+Proto.h"
 #import "GRPCProtoCall+Cancellable.h"
+#import <GRPCClient/GRPCCall+Tests.h>
 #import <IrohaCrypto/NSData+Hex.h>
 
 @interface IRNetworkService()
diff --git a/README.md b/README.md
index 9ca7e44f3..c3c08a725 100755
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Hyperledger Iroha iOS library
 
-### Please pay attention! Current version of the library was tested and compatible with [![Iroha 1.0.0](https://img.shields.io/badge/Iroha-1.0.1-green.svg)](https://github.com/hyperledger/iroha/releases/tag/1.0.1).
+### Please pay attention! Current version of the library was tested and compatible with [![Iroha 1.1.1](https://img.shields.io/badge/Iroha-1.1.1-green.svg)](https://github.com/hyperledger/iroha/releases/tag/1.1.1).
 
 The library was created to provide convienent interface for iOS applications to communicate with [Iroha](https://github.com/hyperledger/iroha) blockchain including sending transactions/query, streaming transaction statuses and block commits.
 
@@ -27,11 +27,17 @@ Feel free to experiment with example project and don't hesistate to ask any ques
 Integration tests is a good place to check existing scenarious or to introduce new ones. To run integration tests, please, go through steps below:
 
 1. Follow instructions from [Iroha documentation](https://iroha.readthedocs.io/en/latest/getting_started/) to setup and run iroha peer in [Docker](https://www.docker.com) container. However make sure you run iroha using following command (consider additional --overwrite_ledger flag):
-```docker run --name iroha -d -p 50051:50051 -v $(pwd)/iroha/example:/opt/iroha_data -v blockstore:/tmp/block_store --network=iroha-network -e KEY='node0 --overwrite_ledger' hyperledger/iroha:latest```.
+```
+docker run --name iroha -d -p 50051:50051 -v $(pwd)/iroha/example:/opt/iroha_data -v blockstore:/tmp/block_store --network=iroha-network -e KEY='node0 --overwrite_ledger' hyperledger/iroha:latest
+```
 
 2. Launch proxy for docker daemon to make it available through http. For example, one can use socat utility:
-```brew install socat```
- ```socat TCP-LISTEN:49721,fork UNIX-CONNECT:/var/run/docker.sock``` 
+```
+brew install socat
+```
+ ```
+ socat TCP-LISTEN:49721,fork UNIX-CONNECT:/var/run/docker.sock
+ ``` 
 
 3. Clone current repository.