diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 796e99e9..2f0b182f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
     strategy:
       matrix:
         version:
-          - 3.12.0
+          - 3.12.1
           - 3.11.5
           - 3.10.3
           - 3.9.3
diff --git a/Cargo.lock b/Cargo.lock
index d4d9d9e3..110b4321 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -325,7 +325,7 @@ dependencies = [
 
 [[package]]
 name = "gdal-src"
-version = "0.4.0+3.12.0"
+version = "0.3.0+3.12.1"
 dependencies = [
  "cmake",
  "curl-sys",
diff --git a/Cargo.toml b/Cargo.toml
index 7d0593dd..d6e0ad27 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,7 @@ array = ["ndarray"]
 thiserror = "2.0"
 geo-types = { version = "0.7.16" }
 gdal-sys = { path = "gdal-sys", version = "0.11" }
-gdal-src = { path = "gdal-src", version = "0.4", optional = true, default-features = false }
+gdal-src = { path = "gdal-src", version = "0.3", optional = true, default-features = false }
 ndarray = { version = "0.17", optional = true }
 chrono = { version = "0.4.26", default-features = false }
 bitflags = "2.10"
diff --git a/gdal-src/Cargo.toml b/gdal-src/Cargo.toml
index 6d74ae3a..f8ce427a 100644
--- a/gdal-src/Cargo.toml
+++ b/gdal-src/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "gdal-src"
-version = "0.4.0+3.12.0"
+version = "0.3.0+3.12.1"
 edition = "2021"
 links = "gdal_src"
 description = "Build script for compiling GDAL from source."
diff --git a/gdal-src/source b/gdal-src/source
index b5a9fab4..21882def 160000
--- a/gdal-src/source
+++ b/gdal-src/source
@@ -1 +1 @@
-Subproject commit b5a9fab4df12cb9e2d1b7db95a5d9902f1cc4720
+Subproject commit 21882def44a088a6a1d5b2d6235b0083cfe6bada
diff --git a/gdal-sys/Cargo.toml b/gdal-sys/Cargo.toml
index ec667eaa..c0e51483 100644
--- a/gdal-sys/Cargo.toml
+++ b/gdal-sys/Cargo.toml
@@ -11,7 +11,7 @@ rust-version = "1.77"
 links = "gdal"
 
 [dependencies]
-gdal-src = { version = "0.4", path = "../gdal-src/", optional = true }
+gdal-src = { version = "0.3", path = "../gdal-src/", optional = true }
 
 [build-dependencies]
 bindgen = { version = "0.72", optional = true }