diff --git a/Dockerfile b/Dockerfile
index 999ecea..1bd216d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,11 @@
-FROM golang:1.19-alpine3.16 AS builder
+FROM golang:1.22-alpine3.20 AS builder
 
 RUN apk update upgrade;
 
-ENV YARA 4.2.3
+ENV YARA 4.5.1
 
 # Install Yara
-RUN apk --update add --no-cache openssl file bison jansson ca-certificates
+RUN apk --update add --no-cache openssl file bison jansson ca-certificates zlib
 RUN apk --update add --no-cache  \
   pkgconfig \
   openssl-dev \
@@ -19,15 +19,19 @@ RUN apk --update add --no-cache  \
   flex \
   git \
   gcc \
-  && echo "===> Install Yara from source..." \
-  && cd /tmp \
+  libcrypto3 \
+  libmagic-static \
+  linux-headers \
+  && echo "===> Install Yara from source..." 
+
+RUN cd /tmp \
   && git clone --recursive --branch v${YARA} https://github.com/VirusTotal/yara.git \
   && cd /tmp/yara \
   && ./bootstrap.sh \
   && sync \
   && ./configure --enable-magic \
+  --enable-crypto \
   --enable-cuckoo \
-  --enable-dotnet \
   && make \
   && make install \
   && rm -rf /tmp/* 
@@ -45,7 +49,7 @@ RUN go build -o /go/bin/hawk
 
 RUN git clone https://github.com/Yara-Rules/rules.git /rules
 
-FROM alpine:3.16
+FROM alpine:3.20
 
 # Update
 RUN apk update upgrade
diff --git a/README.md b/README.md
index 0721818..33feac8 100644
--- a/README.md
+++ b/README.md
@@ -51,24 +51,30 @@ The following image tags are available:
 Run hawk docker image:
 ```bash
 docker run -p 9000:9999 -itd --name hawk cloudina/hawk
+docker run -p 9000:9999 -v $HOME/.aws/credentials:/go/src/app/.aws/credentials:ro -itd --name hawk cloudina/hawk
 ```
 
 Test that service detects common test virus signature:
 
-**HTTP**
+**EXAMPLES**
 ```bash
-$  curl --data "@./testsamples/request/s3filescan" http://0.0.0.0:9000/s3/scanfile -H 'Content-Type: application/json'
+# Request - Scanning a file from S3 , ./testsamples/request/s3filescan has config for s3
+curl --data "@./testsamples/request/s3filescan" http://0.0.0.0:9000/s3/scanfile -H 'Content-Type: application/json'
 
-{"filename":"stream","matches":[{"Rule":"Win.Test.EICAR_HDB-1","namespace":"","tags":null}],"status":"INFECTED"}%                                   
+# Response
+{"filename":"stream","matches":[{"Rule":"Win.Test.EICAR_HDB-1","namespace":"","tags":null}],"status":"INFECTED"}%                                 
 
-$  curl --data "@./testsamples/scanfiles/eicar" http://0.0.0.0:9000/scanstream -H 'Content-Type: application/json'
+# Request - Uploading sample virus file to API
+curl --data "@./testsamples/scanfiles/eicar" http://0.0.0.0:9000/scanstream -H 'Content-Type: application/json'
 
+# Response
 {"filename":"stream","matches":[{"Rule":"Win.Test.EICAR_HDB-1","namespace":"","tags":null}],"status":"INFECTED"}                           
 
-$ curl --data "@./testsamples/scanfiles/hello.txt" http://0.0.0.0:9000/scanstream -H 'Content-Type: application/json'
+# Request - Uploading sample clean file to API
+curl --data "@./testsamples/scanfiles/hello.txt" http://0.0.0.0:9000/scanstream -H 'Content-Type: application/json'
 
+# Response
 {"filename":"stream","matches":[],"status":"CLEAN"} 
-
                                                                                          
 ```
 ## Networking
diff --git a/s3.go b/s3.go
index 4e8c317..98b2d4e 100644
--- a/s3.go
+++ b/s3.go
@@ -29,7 +29,7 @@ func getPartSize() int64 {
 	} else {
 		sizeInMb, err := strconv.Atoi(strSizeInMb)
 		if err != nil {
-			elog.Println(time.Now().Format(time.RFC3339) + "DOWNLOAD_PART_SIZE conversion issue..using DefaultDownloadPartSize ")
+			elog.Println(time.Now().Format(time.RFC3339) + " DOWNLOAD_PART_SIZE conversion issue..using DefaultDownloadPartSize ")
 			partSize = manager.DefaultDownloadPartSize
 		} else {
 			partSize = int64(sizeInMb) * 1024 * 1204
@@ -41,7 +41,7 @@ func getPartSize() int64 {
 func getRegion() string {
 	region, err := os.LookupEnv("AWS_REGION")
 	if !err {
-		elog.Println(time.Now().Format(time.RFC3339) + "AWS_REGION is not present..using us-east-1")
+		elog.Println(time.Now().Format(time.RFC3339) + " AWS_REGION is not present..using us-east-1")
 		region = "us-east-1"
 	}
 	return region
@@ -211,7 +211,7 @@ func readFile(bucket string, item string) ([] byte, error) {
 		return nil, errors.New("Filed to read file")			
 	}
 	// pre-allocate in memory buffer, where headObject type is *s3.HeadObjectOutput
-	buff := make([]byte, int(headObject.ContentLength))
+	buff := make([]byte, int(*headObject.ContentLength))
 	// wrap with aws.WriteAtBuffer
 	w := manager.NewWriteAtBuffer(buff)
 	// download file into the memory