diff --git a/pkgs/os-specific/linux/evdi/default.nix b/pkgs/os-specific/linux/evdi/default.nix
index de039c54c868..b6c5b6fdd2fb 100644
--- a/pkgs/os-specific/linux/evdi/default.nix
+++ b/pkgs/os-specific/linux/evdi/default.nix
@@ -17,13 +17,13 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "evdi";
-  version = "1.14.13";
+  version = "1.14.15";
 
   src = fetchFromGitHub {
     owner = "DisplayLink";
     repo = "evdi";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-59Tr2l2RHOW/TMgSW0HY0l60L7mBZKmYyx/r+Y0NatQ=";
+    hash = "sha256-tms+UNws+oBmwLvDFaDSIa/bUdSpK+CADodbsip3tRg=";
   };
 
   prePatch = ''
@@ -33,7 +33,6 @@ stdenv.mkDerivation (finalAttrs: {
 
   env.CFLAGS = toString [
     "-Wno-error"
-    "-Wno-error=discarded-qualifiers" # for Linux 4.19 compatibility
     "-Wno-error=sign-compare"
   ];
 
@@ -77,7 +76,8 @@ stdenv.mkDerivation (finalAttrs: {
     description = "Extensible Virtual Display Interface";
     homepage = "https://www.displaylink.com/";
     license = with lib.licenses; [
-      lgpl21Only
+      mit
+      lgpl21Plus
       gpl2Only
     ];
     maintainers = [ ];