diff --git a/kivy/core/image/_img_sdl3.pyx b/kivy/core/image/_img_sdl3.pyx
index 4760aba30b..29c4bff819 100644
--- a/kivy/core/image/_img_sdl3.pyx
+++ b/kivy/core/image/_img_sdl3.pyx
@@ -6,8 +6,6 @@ from libc.string cimport memset
 from libc.stdlib cimport malloc
 from cpython cimport bool
 
-cdef int _is_init = 0
-
 
 cdef struct BytesIODataContainer:
     void* data
@@ -45,22 +43,6 @@ cdef SDL_IOStream *rwops_bridge_to_bytesio(byteio):
     return rwops
 
 
-def init():
-    global _is_init
-    if _is_init:
-        return
-
-    cdef int ret
-    for flags in (IMG_INIT_JPG, IMG_INIT_PNG, IMG_INIT_TIF, IMG_INIT_WEBP):
-        ret = IMG_Init(flags)
-        if ret & flags != flags:
-            # FIXME replace flags by a good string
-            Logger.error(
-                'ImageSDL3: Failed to init required {} support'.format(flags))
-            Logger.error('ImageSDL3: {}'.format(SDL_GetError()))
-
-    _is_init = 1
-
 def save(filename, w, h, pixelfmt, pixels, flipped, imagefmt, quality=90):
     cdef bytes c_filename = None
     cdef SDL_IOStream *rwops
diff --git a/kivy/core/image/img_sdl3.py b/kivy/core/image/img_sdl3.py
index 36615c0412..679ce96cb8 100644
--- a/kivy/core/image/img_sdl3.py
+++ b/kivy/core/image/img_sdl3.py
@@ -19,9 +19,6 @@
 class ImageLoaderSDL3(ImageLoaderBase):
     '''Image loader based on SDL3_image'''
 
-    def _ensure_ext(self):
-        _img_sdl3.init()
-
     @staticmethod
     def extensions():
         '''Return accepted extensions for this loader'''
diff --git a/kivy/lib/sdl3.pxi b/kivy/lib/sdl3.pxi
index 857349e3e5..0f2a7209ea 100644
--- a/kivy/lib/sdl3.pxi
+++ b/kivy/lib/sdl3.pxi
@@ -689,12 +689,6 @@ cdef extern from "SDL.h":
     Uint16 SDL_BIG_ENDIAN
 
 cdef extern from "SDL_image.h":
-    ctypedef enum IMG_InitFlags:
-        IMG_INIT_JPG
-        IMG_INIT_PNG
-        IMG_INIT_TIF
-        IMG_INIT_WEBP
-    cdef int IMG_Init(IMG_InitFlags flags)
     cdef SDL_Surface *IMG_Load(char *file)
     cdef SDL_Surface *IMG_Load_IO(SDL_IOStream *src, int freesrc)
     cdef int IMG_SavePNG(SDL_Surface *src, char *file)
diff --git a/tools/build_linux_dependencies.sh b/tools/build_linux_dependencies.sh
index 6f1200e1c9..253f8c014c 100755
--- a/tools/build_linux_dependencies.sh
+++ b/tools/build_linux_dependencies.sh
@@ -2,16 +2,14 @@
 set -e -x
 
 # manylinux SDL3
-MANYLINUX__SDL3__VERSION="3.1.2"
-MANYLINUX__SDL3__URL="https://github.com/libsdl-org/SDL/archive/refs/heads/main.tar.gz"
-MANYLINUX__SDL3__FOLDER="SDL-main"
+MANYLINUX__SDL3__VERSION="3.1.10"
+MANYLINUX__SDL3__URL="https://github.com/libsdl-org/SDL/releases/download/prerelease-$MANYLINUX__SDL3__VERSION/SDL3-$MANYLINUX__SDL3__VERSION.tar.gz"
+MANYLINUX__SDL3__FOLDER="SDL3-$MANYLINUX__SDL3__VERSION"
 
 # manylinux SDL3_image
-# MANYLINUX__SDL2_IMAGE__VERSION="2.8.0"
-# MANYLINUX__SDL2_IMAGE__URL="https://github.com/libsdl-org/SDL_image/releases/download/release-$MANYLINUX__SDL2_IMAGE__VERSION/SDL2_image-$MANYLINUX__SDL2_IMAGE__VERSION.tar.gz"
-# MANYLINUX__SDL2_IMAGE__FOLDER="SDL2_image-$MANYLINUX__SDL2_IMAGE__VERSION"
-MANYLINUX__SDL3_IMAGE__URL="https://github.com/libsdl-org/SDL_image/archive/refs/heads/main.tar.gz"
-MANYLINUX__SDL3_IMAGE__FOLDER="SDL_image-main"
+MANYLINUX__SDL3_IMAGE__VERSION="3.1.0"
+MANYLINUX__SDL3_IMAGE__URL="https://github.com/libsdl-org/SDL_image/releases/download/preview-$MANYLINUX__SDL3_IMAGE__VERSION/SDL3_image-$MANYLINUX__SDL3_IMAGE__VERSION.tar.gz"
+MANYLINUX__SDL3_IMAGE__FOLDER="SDL3_image-$MANYLINUX__SDL3_IMAGE__VERSION"
 
 # manylinux SDL3_mixer
 # MANYLINUX__SDL2_MIXER__VERSION="2.6.3"
diff --git a/tools/build_macos_dependencies.sh b/tools/build_macos_dependencies.sh
index 42d723a5df..7647a22cc9 100755
--- a/tools/build_macos_dependencies.sh
+++ b/tools/build_macos_dependencies.sh
@@ -4,16 +4,14 @@ set -e -x
 USE_LEGACY_OPENGL="${USE_LEGACY_OPENGL:-0}"
 
 # macOS SDL3
-# MACOS__SDL3__VERSION="3.1.2"
-MACOS__SDL3__URL="https://github.com/libsdl-org/SDL/archive/refs/heads/main.tar.gz"
-MACOS__SDL3__FOLDER="SDL-main"
-
-# macOS SDL2_image
-# MACOS__SDL2_IMAGE__VERSION="2.8.0"
-# MACOS__SDL2_IMAGE__URL="https://github.com/libsdl-org/SDL_image/releases/download/release-$MACOS__SDL2_IMAGE__VERSION/SDL2_image-$MACOS__SDL2_IMAGE__VERSION.tar.gz"
-# MACOS__SDL2_IMAGE__FOLDER="SDL2_image-${MACOS__SDL2_IMAGE__VERSION}"
-MACOS__SDL3_IMAGE__URL="https://github.com/libsdl-org/SDL_image/archive/refs/heads/main.tar.gz"
-MACOS__SDL3_IMAGE__FOLDER="SDL_image-main"
+MACOS__SDL3__VERSION="3.1.10"
+MACOS__SDL3__URL="https://github.com/libsdl-org/SDL/releases/download/prerelease-$MACOS__SDL3__VERSION/SDL3-$MACOS__SDL3__VERSION.tar.gz"
+MACOS__SDL3__FOLDER="SDL3-$MACOS__SDL3__VERSION"
+
+# macOS SDL3_image
+MACOS__SDL3_IMAGE__VERSION="3.1.0"
+MACOS__SDL3_IMAGE__URL="https://github.com/libsdl-org/SDL_image/releases/download/preview-$MACOS__SDL3_IMAGE__VERSION/SDL3_image-$MACOS__SDL3_IMAGE__VERSION.tar.gz"
+MACOS__SDL3_IMAGE__FOLDER="SDL3_image-$MACOS__SDL3_IMAGE__VERSION"
 
 # macOS SDL3_mixer
 # MACOS__SDL2_MIXER__VERSION="2.6.3"