diff --git a/mono-5.18.0-use-msc.patch b/mono-5.18.0-use-mcs.patch
similarity index 84%
rename from mono-5.18.0-use-msc.patch
rename to mono-5.18.0-use-mcs.patch
index 8ea248d..c24a4a2 100644
--- a/mono-5.18.0-use-msc.patch
+++ b/mono-5.18.0-use-mcs.patch
@@ -5,7 +5,7 @@
  		protected override string ToolName {
  			get {
 -				return MSBuildUtils.RunningOnWindows ? "csc.bat" : "csc.exe";
-+				return MSBuildUtils.RunningOnWindows ? "msc.bat" : "msc.exe";
++				return MSBuildUtils.RunningOnWindows ? "mcs.bat" : "mcs.exe";
  			}
  		}
  
diff --git a/mono.spec b/mono.spec
index 89f56b3..79c0ab1 100644
--- a/mono.spec
+++ b/mono.spec
@@ -20,10 +20,10 @@
 %undefine _missing_build_ids_terminate_build
 %endif
 
-%global xamarinrelease 0
+%global xamarinrelease 3
 Name:           mono
 Version:        5.18.1
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Cross-platform, Open Source, .NET development framework
 
 License:        MIT
@@ -41,7 +41,7 @@ Patch3:         mono-4.2-fix-winforms-trayicon.patch
 Patch4:         mono-4.6.1-aarch64.patch
 Patch5:         mono-5.18.1-s390x-ucontext.patch
 Patch6:         mono-5.18.0-roslyn-binaries.patch
-Patch7:         mono-5.18.0-use-msc.patch
+Patch7:         mono-5.18.0-use-mcs.patch
 Patch8:         mono-5.18.0-use-v471.patch
 Patch9:         mono-5.18.0-reference-assemblies-fix.patch
 Patch10:        mono-5.18.0-sharpziplib-parent-path-traversal.patch
@@ -879,6 +879,10 @@ cert-sync /etc/pki/tls/certs/ca-bundle.crt
 %files complete
 
 %changelog
+* Thu Apr 18 2019 Timotheus Pokorra <timotheus.pokorra@solidcharity.com> - 5.18.1-3
+- upgrade to Mono 5.18.1.3
+- fix typo for mcs in Microsoft.Build.Tasks patch
+
 * Wed Mar 27 2019 Timotheus Pokorra <timotheus.pokorra@solidcharity.com> - 5.18.1-2
 - disable bootstrapping
 
diff --git a/sources b/sources
index 39c6995..7271f6b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (mono-5.18.1.0.tar.bz2) = 3df43887751e7f73d516d0e2fe5c412542beaa949727135e3ef1b3e538ca1d8062c55d5394f1c01cece857ed8064b6f37984e46108160fae7623b9d0a48cd380
+SHA512 (mono-5.18.1.3.tar.bz2) = 7e43d8ebaeb8d355a019606434559f592da6e01124cf2f53f434c8941765a985d2d8c959f8b2aac2ae68b0fa6f549ee368e1ded422f26fc457f929ce3a3767ed