diff --git a/conanfile.py b/conanfile.py
index 2579ccc..27b49bb 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -6,9 +6,7 @@ import os
 
 class Pkg(ConanFile):
     settings = "os", "compiler", "build_type", "arch"
-    generators = (
-        "CMakeDeps"
-    )
+    generators = "CMakeDeps"
     default_options = {
         "systemc/*:shared": "True",
         "boost/*:fPIC": "True",
@@ -35,24 +33,29 @@ class Pkg(ConanFile):
     }
 
     def requirements(self):
-        self.requires("systemc/3.0.1")
-        self.requires("fmt/8.0.1")
-        self.requires("spdlog/1.9.2")
-        self.requires("boost/1.85.0")
-        self.requires("catch2/3.1.0")
-        self.requires("lz4/1.9.4")
-        self.requires("yaml-cpp/0.7.0")
-        self.requires("jsoncpp/1.9.5")
+        if self.settings.compiler.cppstd:
+            cppstd = str(self.settings.compiler.cppstd).replace("gnu", "")
+            if cppstd == "11" or cppstd == "14":
+                self.requires("systemc/2.3.4")
+            else:
+                self.requires("systemc/3.0.1")
+        else:
+            self.requires("systemc/2.3.4")
+        self.requires("spdlog/1.16.0")
+        self.requires("boost/1.89.0")
+        self.requires("lz4/1.10.0")
+        self.requires("yaml-cpp/0.8.0")
+        self.requires("jsoncpp/1.9.6")
         self.requires("zlib/1.3.1")
+        self.requires("catch2/3.1.0")
 
     def build_requirements(self):
         pass
 
     def layout(self):
         cmake_layout(self)
-    
+
     def generate(self):
         tc = CMakeToolchain(self)
         tc.user_presets_path = False
         tc.generate()
-        
\ No newline at end of file
diff --git a/scc b/scc
index 3f5d963..5bb49d8 160000
--- a/scc
+++ b/scc
@@ -1 +1 @@
-Subproject commit 3f5d963ae0f7e83a340674d44c3a8e5125d221ef
+Subproject commit 5bb49d85a106dffd5353ba40506ac5474b828fe5