diff --git a/serialization.nimble b/serialization.nimble
index 99c1bc6..2a7a037 100644
--- a/serialization.nimble
+++ b/serialization.nimble
@@ -7,7 +7,7 @@ description   = "A modern and extensible serialization framework for Nim"
 license       = "Apache License 2.0"
 skipDirs      = @["tests"]
 
-requires "nim >= 1.2.0",
+requires "nim >= 1.6.0",
          "faststreams",
          "unittest2",
          "stew"
@@ -17,9 +17,8 @@ let lang = getEnv("NIMLANG", "c") # Which backend (c/cpp/js)
 let flags = getEnv("NIMFLAGS", "") # Extra flags for the compiler
 let verbose = getEnv("V", "") notin ["", "0"]
 
-let styleCheckStyle = if (NimMajor, NimMinor) < (1, 6): "hint" else: "error"
 let cfg =
-  " --styleCheck:usages --styleCheck:" & styleCheckStyle &
+  " --styleCheck:usages --styleCheck:error" &
   (if verbose: "" else: " --verbosity:0 --hints:off") &
   " --skipParentCfg --skipUserCfg --outdir:build --nimcache:build/nimcache -f"