diff --git a/ChangeLog.md b/ChangeLog.md
index 3bdde1241ba74..b4a9bab199aa3 100644
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -26,6 +26,7 @@ See docs/process.md for more on how version tagging works.
 - `emcmake` no longer automatically injects `--experimental-wasm-threads` and
   `--experimental-wasm-bulk-memory` flags when used with versions of node older
   than v16. (#26560)
+- SDL3 port updated from 3.2.30 to 3.4.2 (#26572)
 
 5.0.4 - 03/23/26
 ----------------
diff --git a/tools/ports/sdl3.py b/tools/ports/sdl3.py
index cb743e2b2b5c2..e01f5d0feb934 100644
--- a/tools/ports/sdl3.py
+++ b/tools/ports/sdl3.py
@@ -9,9 +9,9 @@
 
 from tools import diagnostics
 
-VERSION = '3.2.30'
+VERSION = '3.4.2'
 TAG = f'release-{VERSION}'
-HASH = '80ef7b2f257f43fe47c7ea8aa0a64f1c6f23720d91065d5e9b42f0205c62fc98bcf8dd1f1834fe09c66bea2598a18a658b82212cb29810be2d2175dece0aadce'
+HASH = 'a17fe538993a3956e0b85fda21e7b431244e803a5facb35bb7a2bfd9ee23f1aac65838ed3225f526b81410cae7c23da7c40693c2e791385281f0764239116bce'
 SUBDIR = f'SDL-{TAG}'
 
 variants = {'sdl3-mt': {'PTHREADS': 1}}
@@ -53,7 +53,7 @@ def create(final):
       'atomic/*.c',
       'audio/*.c',
       'camera/*.c',
-      'core/*.c',
+      'core/unix/*.c',
       'cpuinfo/*.c',
       'dynapi/*.c',
       'events/*.c',
diff --git a/tools/ports/sdl3/SDL_build_config.h b/tools/ports/sdl3/SDL_build_config.h
index 87fc5c822c3d2..25317e19e4300 100644
--- a/tools/ports/sdl3/SDL_build_config.h
+++ b/tools/ports/sdl3/SDL_build_config.h
@@ -47,6 +47,8 @@
 #define HAVE_STRING_H 1
 #define HAVE_SYS_TYPES_H 1
 #define HAVE_WCHAR_H 1
+#define HAVE_GETRESGID 1
+#define HAVE_GETRESUID 1
 /* #undef HAVE_PTHREAD_NP_H */
 
 /* C library functions */