diff --git a/CMakeModules/DuckStationDependencies.cmake b/CMakeModules/DuckStationDependencies.cmake
index 826b89736..ca5a0eb69 100644
--- a/CMakeModules/DuckStationDependencies.cmake
+++ b/CMakeModules/DuckStationDependencies.cmake
@@ -9,7 +9,7 @@ endif()
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 
-find_package(SDL2 2.30.3 REQUIRED)
+find_package(SDL2 2.30.4 REQUIRED)
 find_package(Zstd 1.5.5 REQUIRED)
 find_package(WebP REQUIRED) # v1.3.2, spews an error on Linux because no pkg-config.
 find_package(ZLIB REQUIRED) # 1.3, but Mac currently doesn't use it.
diff --git a/scripts/build-dependencies-linux.sh b/scripts/build-dependencies-linux.sh
index 54d2da8e5..a48db418f 100755
--- a/scripts/build-dependencies-linux.sh
+++ b/scripts/build-dependencies-linux.sh
@@ -18,7 +18,7 @@ LIBBACKTRACE=ad106d5fdd5d960bd33fae1c48a351af567fd075
 LIBJPEG=9f
 LIBPNG=1.6.43
 LIBWEBP=1.3.2
-SDL=SDL2-2.30.3
+SDL=SDL2-2.30.4
 QT=6.7.0
 ZSTD=1.5.5
 
@@ -36,7 +36,7 @@ fd6f417fe9e3a071cf1424a5152d926a34c4a3c5070745470be6cf12a404ed79  $LIBBACKTRACE.
 04705c110cb2469caa79fb71fba3d7bf834914706e9641a4589485c1f832565b  jpegsrc.v$LIBJPEG.tar.gz
 6a5ca0652392a2d7c9db2ae5b40210843c0bbc081cbd410825ab00cc59f14a6c  libpng-$LIBPNG.tar.xz
 2a499607df669e40258e53d0ade8035ba4ec0175244869d1025d460562aa09b4  libwebp-$LIBWEBP.tar.gz
-820440072f8f5b50188c1dae104f2ad25984de268785be40c41a099a510f0aec  $SDL.tar.gz
+59c89d0ed40d4efb23b7318aa29fe7039dbbc098334b14f17f1e7e561da31a26  $SDL.tar.gz
 9c4396cc829cfae319a6e2615202e82aad41372073482fce286fac78646d3ee4  zstd-$ZSTD.tar.gz
 11b2e29e2e52fb0e3b453ea13bbe51a10fdff36e1c192d8868c5a40233b8b254  qtbase-everywhere-src-$QT.tar.xz
 516ce07ec8dd5a11c59816fe33ddb71d4f691d0ebbc1798ac338f23b86c029a7  qtimageformats-everywhere-src-$QT.tar.xz
diff --git a/scripts/build-dependencies-mac.sh b/scripts/build-dependencies-mac.sh
index f06e21c0d..30f72e9c5 100755
--- a/scripts/build-dependencies-mac.sh
+++ b/scripts/build-dependencies-mac.sh
@@ -36,7 +36,7 @@ fi
 
 FREETYPE=2.13.2
 HARFBUZZ=8.3.1
-SDL=SDL2-2.30.3
+SDL=SDL2-2.30.4
 ZLIB=1.3.1
 ZSTD=1.5.5
 LIBPNG=1.6.43
@@ -72,7 +72,7 @@ CMAKE_ARCH_UNIVERSAL=-DCMAKE_OSX_ARCHITECTURES="x86_64;arm64"
 cat > SHASUMS <<EOF
 12991c4e55c506dd7f9b765933e62fd2be2e06d421505d7950a132e4f1bb484d  freetype-$FREETYPE.tar.xz
 19a54fe9596f7a47c502549fce8e8a10978c697203774008cc173f8360b19a9a  harfbuzz-$HARFBUZZ.tar.gz
-820440072f8f5b50188c1dae104f2ad25984de268785be40c41a099a510f0aec  $SDL.tar.gz
+59c89d0ed40d4efb23b7318aa29fe7039dbbc098334b14f17f1e7e561da31a26  $SDL.tar.gz
 9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23  zlib-$ZLIB.tar.gz
 9c4396cc829cfae319a6e2615202e82aad41372073482fce286fac78646d3ee4  zstd-$ZSTD.tar.gz
 6a5ca0652392a2d7c9db2ae5b40210843c0bbc081cbd410825ab00cc59f14a6c  libpng-$LIBPNG.tar.xz
diff --git a/scripts/build-dependencies-windows-arm64.bat b/scripts/build-dependencies-windows-arm64.bat
index e71b9699a..952c4c730 100644
--- a/scripts/build-dependencies-windows-arm64.bat
+++ b/scripts/build-dependencies-windows-arm64.bat
@@ -48,7 +48,7 @@ set LIBJPEG=9f
 set LIBPNG=1643
 set QT=6.7.0
 set QTMINOR=6.7
-set SDL=SDL2-2.30.3
+set SDL=SDL2-2.30.4
 set WEBP=1.3.2
 set ZLIB=1.3.1
 set ZLIBSHORT=131
@@ -64,7 +64,7 @@ call :downloadfile "freetype-%FREETYPE%.tar.gz" https://download.savannah.gnu.or
 call :downloadfile "harfbuzz-%HARFBUZZ%.zip" https://github.com/harfbuzz/harfbuzz/archive/refs/tags/%HARFBUZZ%.zip b2bc56184ae37324bc4829fde7d3f9e6916866ad711ee85792e457547c9fd127 || goto error
 call :downloadfile "lpng%LIBPNG%.zip" https://download.sourceforge.net/libpng/lpng1643.zip fc466a1e638e635d6c66363bdf3f38555b81b0141d0b06ba45b49ccca327436d || goto error
 call :downloadfile "jpegsr%LIBJPEG%.zip" https://ijg.org/files/jpegsr%LIBJPEG%.zip 6255da8c89e09d694e6800688c76145eb6870a76ac0d36c74fccd61b3940aafa || goto error
-call :downloadfile "%SDL%.zip" "https://libsdl.org/release/%SDL%.zip" c5d78a9e0346c6695f03df8ba25e5e111a1e23c8aefa8372a1c5a0dd79acaf10 || goto error
+call :downloadfile "%SDL%.zip" "https://libsdl.org/release/%SDL%.zip" 292d5e2f897aa3acb6b365b605c3249c92916fbe7eba4a2e57573ada3855d7cb || goto error
 call :downloadfile "qtbase-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtbase-everywhere-src-%QT%.zip" 31a1e0c69bb37e6631de02f8cf0b75afdc2ce44890c32dac38d362c251c12483 || goto error
 call :downloadfile "qtimageformats-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtimageformats-everywhere-src-%QT%.zip" 450c0b1c3cd51e2e110fceaf60e157641c2698d18b12a3552d43fa1539bfdbbc || goto error
 call :downloadfile "qtsvg-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtsvg-everywhere-src-%QT%.zip" b869be09ccb72949a3311dc87ac702b6e854edfd5bff2bc2cc4d7fd549b1869a || goto error
diff --git a/scripts/build-dependencies-windows-x64.bat b/scripts/build-dependencies-windows-x64.bat
index 392d63a1a..3ab25c876 100644
--- a/scripts/build-dependencies-windows-x64.bat
+++ b/scripts/build-dependencies-windows-x64.bat
@@ -46,7 +46,7 @@ set LIBJPEG=9f
 set LIBPNG=1643
 set QT=6.7.0
 set QTMINOR=6.7
-set SDL=SDL2-2.30.3
+set SDL=SDL2-2.30.4
 set WEBP=1.3.2
 set ZLIB=1.3.1
 set ZLIBSHORT=131
@@ -62,7 +62,7 @@ call :downloadfile "freetype-%FREETYPE%.tar.gz" https://download.savannah.gnu.or
 call :downloadfile "harfbuzz-%HARFBUZZ%.zip" https://github.com/harfbuzz/harfbuzz/archive/refs/tags/%HARFBUZZ%.zip b2bc56184ae37324bc4829fde7d3f9e6916866ad711ee85792e457547c9fd127 || goto error
 call :downloadfile "lpng%LIBPNG%.zip" https://download.sourceforge.net/libpng/lpng1643.zip fc466a1e638e635d6c66363bdf3f38555b81b0141d0b06ba45b49ccca327436d || goto error
 call :downloadfile "jpegsr%LIBJPEG%.zip" https://ijg.org/files/jpegsr%LIBJPEG%.zip 6255da8c89e09d694e6800688c76145eb6870a76ac0d36c74fccd61b3940aafa || goto error
-call :downloadfile "%SDL%.zip" "https://libsdl.org/release/%SDL%.zip" c5d78a9e0346c6695f03df8ba25e5e111a1e23c8aefa8372a1c5a0dd79acaf10 || goto error
+call :downloadfile "%SDL%.zip" "https://libsdl.org/release/%SDL%.zip" 292d5e2f897aa3acb6b365b605c3249c92916fbe7eba4a2e57573ada3855d7cb || goto error
 call :downloadfile "qtbase-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtbase-everywhere-src-%QT%.zip" 31a1e0c69bb37e6631de02f8cf0b75afdc2ce44890c32dac38d362c251c12483 || goto error
 call :downloadfile "qtimageformats-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtimageformats-everywhere-src-%QT%.zip" 450c0b1c3cd51e2e110fceaf60e157641c2698d18b12a3552d43fa1539bfdbbc || goto error
 call :downloadfile "qtsvg-everywhere-src-%QT%.zip" "https://download.qt.io/official_releases/qt/%QTMINOR%/%QT%/submodules/qtsvg-everywhere-src-%QT%.zip" b869be09ccb72949a3311dc87ac702b6e854edfd5bff2bc2cc4d7fd549b1869a || goto error
diff --git a/scripts/flatpak/modules/20-sdl2.json b/scripts/flatpak/modules/20-sdl2.json
index 20baa8119..829175a29 100644
--- a/scripts/flatpak/modules/20-sdl2.json
+++ b/scripts/flatpak/modules/20-sdl2.json
@@ -14,8 +14,8 @@
   "sources": [
     {
       "type": "archive",
-      "url": "https://libsdl.org/release/SDL2-2.30.3.tar.gz",
-      "sha256": "820440072f8f5b50188c1dae104f2ad25984de268785be40c41a099a510f0aec"
+      "url": "https://libsdl.org/release/SDL2-2.30.4.tar.gz",
+      "sha256": "59c89d0ed40d4efb23b7318aa29fe7039dbbc098334b14f17f1e7e561da31a26"
     }
   ],
   "cleanup": [