diff --git a/Splitio.Redis/Services/Cache/Classes/RedisImpressionsCache.cs b/Splitio.Redis/Services/Cache/Classes/RedisImpressionsCache.cs
index b5f9990f..503d919e 100644
--- a/Splitio.Redis/Services/Cache/Classes/RedisImpressionsCache.cs
+++ b/Splitio.Redis/Services/Cache/Classes/RedisImpressionsCache.cs
@@ -1,4 +1,5 @@
 using Splitio.Domain;
+using Splitio.Redis.Domain;
 using Splitio.Redis.Services.Cache.Interfaces;
 using Splitio.Redis.Services.Domain;
 using Splitio.Services.Shared.Classes;
@@ -81,11 +82,7 @@ public async Task RecordImpressionsCountAsync(Dictionary<string, int> impression
         // public for tests
         public RedisValue[] GetImpressions(IList<KeyImpression> items)
         {
-            var impressions = items.Select(item => JsonConvertWrapper.SerializeObjectIgnoreNullValue(new
-            {
-                m = new { s = SdkVersion, i = MachineIp, n = MachineName },
-                i = new { k = item.keyName, b = item.bucketingKey, f = item.feature, t = item.treatment, r = item.label, c = item.changeNumber, m = item.time, pt = item.previousTime, properties = item.properties }
-            }));
+            var impressions = items.Select(item => new RedisKeyImpression(item, SdkVersion, MachineIp, MachineName).ExportJson());
 
             return impressions
                 .Select(i => (RedisValue)i)
diff --git a/Splitio.Redis/Services/Domain/RedisKeyImpression.cs b/Splitio.Redis/Services/Domain/RedisKeyImpression.cs
new file mode 100644
index 00000000..8c575e40
--- /dev/null
+++ b/Splitio.Redis/Services/Domain/RedisKeyImpression.cs
@@ -0,0 +1,57 @@
+using Splitio.Domain;
+using Splitio.Services.Shared.Classes;
+
+namespace Splitio.Redis.Domain
+{
+    public class RedisKeyImpression
+    {
+        public RedisKeyImpression(KeyImpression item, string SdkVersion, string MachineIp, string MachineName)
+        {
+            this.f = item.feature;
+            k = item.keyName;
+            this.t = item.treatment;
+            this.m = item.time;
+            this.c = item.changeNumber;
+            this.r = item.label;
+            this.b = item.bucketingKey;
+            this.pt = item.previousTime;
+            this.properties = item.properties;
+            this.s = SdkVersion;
+            this.i = MachineIp;
+            this.n = MachineName;
+        }
+
+        public string ExportJson()
+        {
+            if (string.IsNullOrEmpty(this.properties))
+            {
+                return JsonConvertWrapper.SerializeObject(new
+                {
+                    m = new { s = this.s, i = this.i, n = this.n },
+                    i = new { k = this.k, b = this.b, f = this.f, t = this.t, r = this.r, c = this.c, m = this.m, pt = this.pt }
+                });
+            } else {
+                return JsonConvertWrapper.SerializeObject(new
+                {
+                    m = new { s = this.s, i = this.i, n = this.n },
+                    i = new { k = this.k, b = this.b, f = this.f, t = this.t, r = this.r, c = this.c, m = this.m, pt = this.pt, properties = this.properties }
+                });
+            }
+        }
+
+        public string f { get; set; }
+        public string k { get; set; }
+        public string t { get; set; }
+        public long m { get; set; }
+        public long? c { get; set; }
+        public string r { get; set; }
+        public string b { get; set; }
+        public long? pt { get; set; }
+        public string properties { get; set; }
+
+        public string s { get; set; }
+        public string i {  get; set; }
+        public string n { get; set; }
+
+    }
+}
diff --git a/Splitio.Redis/Splitio.Redis.csproj b/Splitio.Redis/Splitio.Redis.csproj
index ed6c646d..68bc87e5 100644
--- a/Splitio.Redis/Splitio.Redis.csproj
+++ b/Splitio.Redis/Splitio.Redis.csproj
@@ -7,7 +7,7 @@
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
     <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
-    <Version>7.13.0-rc2</Version>
+    <Version>7.13.0-rc4</Version>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>SplitioRedis.snk</AssemblyOriginatorKeyFile>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
diff --git a/src/Splitio/Splitio.csproj b/src/Splitio/Splitio.csproj
index 8f059f77..cf481d2a 100644
--- a/src/Splitio/Splitio.csproj
+++ b/src/Splitio/Splitio.csproj
@@ -7,7 +7,7 @@
     <GenerateAssemblyConfigurationAttribute>false</GenerateAssemblyConfigurationAttribute>
     <GenerateAssemblyCompanyAttribute>false</GenerateAssemblyCompanyAttribute>
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
-    <Version>7.13.0-rc2</Version>
+    <Version>7.13.0-rc4</Version>
     <RootNamespace>Splitio</RootNamespace>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>Splitio.snk</AssemblyOriginatorKeyFile>
diff --git a/tests/Splitio-tests/Unit Tests/Impressions/RedisImpressionsCacheTests.cs b/tests/Splitio-tests/Unit Tests/Impressions/RedisImpressionsCacheTests.cs
index b1addd5c..4d84d7d6 100644
--- a/tests/Splitio-tests/Unit Tests/Impressions/RedisImpressionsCacheTests.cs	
+++ b/tests/Splitio-tests/Unit Tests/Impressions/RedisImpressionsCacheTests.cs	
@@ -107,9 +107,9 @@ public void CorrectFormatStoreImpressions()
 
             // Act.
             var result = _cache.GetImpressions(impressions);
-            var impression1 = "{\"m\":{\"s\":\"version\",\"i\":\"ip\",\"n\":\"mm\"},\"i\":{\"k\":\"matching-key\",\"b\":\"bucketing-key\",\"f\":\"feature-1\",\"t\":\"treatment\",\"r\":\"label\",\"c\":3333444,\"m\":34534546}}";
+            var impression1 = "{\"m\":{\"s\":\"version\",\"i\":\"ip\",\"n\":\"mm\"},\"i\":{\"k\":\"matching-key\",\"b\":\"bucketing-key\",\"f\":\"feature-1\",\"t\":\"treatment\",\"r\":\"label\",\"c\":3333444,\"m\":34534546,\"pt\":null}}";
             var impression2 = "{\"m\":{\"s\":\"version\",\"i\":\"ip\",\"n\":\"mm\"},\"i\":{\"k\":\"matching-key\",\"b\":\"bucketing-key\",\"f\":\"feature-1\",\"t\":\"treatment\",\"r\":\"label\",\"c\":3333444,\"m\":34534550,\"pt\":34534546}}";
-            var impression3 = "{\"m\":{\"s\":\"version\",\"i\":\"ip\",\"n\":\"mm\"},\"i\":{\"k\":\"matching-key\",\"b\":\"bucketing-key\",\"f\":\"feature-2\",\"t\":\"treatment\",\"r\":\"label\",\"c\":3333444,\"m\":34534546,\"properties\":\"{\\\"prop\\\":\\\"val\\\"}\"}}";
+            var impression3 = "{\"m\":{\"s\":\"version\",\"i\":\"ip\",\"n\":\"mm\"},\"i\":{\"k\":\"matching-key\",\"b\":\"bucketing-key\",\"f\":\"feature-2\",\"t\":\"treatment\",\"r\":\"label\",\"c\":3333444,\"m\":34534546,\"pt\":null,\"properties\":\"{\\\"prop\\\":\\\"val\\\"}\"}}";
 
             // Assert.
             Assert.AreEqual(impression1, result[0].ToString());