diff --git a/build/premake/extern_libs5.lua b/build/premake/extern_libs5.lua
index b9fdd70..d732f15 100644
--- a/build/premake/extern_libs5.lua
+++ b/build/premake/extern_libs5.lua
@@ -641,7 +641,7 @@ extern_lib_defs = {
 
 			if _OPTIONS["with-system-mozjs"] then
 				if not _OPTIONS["android"] then
-					pkgconfig.add_includes_after("mozjs-128")
+					pkgconfig.add_includes_after("mozjs-140")
 				end
 			else
 				filter "Debug"
@@ -657,7 +657,7 @@ extern_lib_defs = {
 				if _OPTIONS["android"] then
 					links { "mozjs-128" }
 				else
-					pkgconfig.add_links("mozjs-128")
+					pkgconfig.add_links("mozjs-140")
 				end
 			else
 				filter { "Debug" }
diff --git a/build/premake/premake5.lua b/build/premake/premake5.lua
index 357b08f..8b1630a 100644
--- a/build/premake/premake5.lua
+++ b/build/premake/premake5.lua
@@ -165,7 +165,7 @@ end
 -- The pc file doesn't specify the required -DDEBUG needed in that case
 local mozjs_is_debug_build = false
 if _OPTIONS["with-system-mozjs"] then
-	local _, errorCode = os.outputof(cc .. " $(pkg-config mozjs-128 --cflags) ./tests/mozdebug.c -o /dev/null")
+	local _, errorCode = os.outputof(cc .. " $(pkg-config mozjs-140 --cflags) ./tests/mozdebug.c -o /dev/null")
 	if errorCode ~= 0 then
 		mozjs_is_debug_build = true
 	end