diff --git a/ci/docker/python-free-threaded-wheel-musllinux-test-imports.dockerfile b/ci/docker/python-free-threaded-wheel-musllinux-test-imports.dockerfile
index 69ddaf70d589..3f98c13352cc 100644
--- a/ci/docker/python-free-threaded-wheel-musllinux-test-imports.dockerfile
+++ b/ci/docker/python-free-threaded-wheel-musllinux-test-imports.dockerfile
@@ -36,7 +36,7 @@ RUN apk update && \
 RUN set -e; \
     case "${python_version}" in \
       3.14) python_patch_version="3.14.7";; \
-      3.15) python_patch_version="3.15.0rc1";; \
+      3.15) python_patch_version="3.15.0rc2";; \
     esac && \
     curl -L -o python.tar.zst \
     https://github.com/astral-sh/python-build-standalone/releases/download/${build_date}/cpython-${python_patch_version}+${build_date}-${arch}-unknown-linux-musl-freethreaded+lto-full.tar.zst && \
diff --git a/ci/docker/python-free-threaded-wheel-musllinux-test-unittests.dockerfile b/ci/docker/python-free-threaded-wheel-musllinux-test-unittests.dockerfile
index d27c18ececab..6adbd50e0dc2 100644
--- a/ci/docker/python-free-threaded-wheel-musllinux-test-unittests.dockerfile
+++ b/ci/docker/python-free-threaded-wheel-musllinux-test-unittests.dockerfile
@@ -38,7 +38,7 @@ RUN apk update && \
 RUN set -e; \
     case "${python_version}" in \
       3.14) python_patch_version="3.14.7";; \
-      3.15) python_patch_version="3.15.0rc1";; \
+      3.15) python_patch_version="3.15.0rc2";; \
     esac && \
     curl -L -o python.tar.zst \
     https://github.com/astral-sh/python-build-standalone/releases/download/${build_date}/cpython-${python_patch_version}+${build_date}-${arch}-unknown-linux-musl-freethreaded+lto-full.tar.zst && \
diff --git a/ci/docker/python-free-threaded-wheel-windows-test-vs2022.dockerfile b/ci/docker/python-free-threaded-wheel-windows-test-vs2022.dockerfile
index d6af6f174fd7..dad0f33a27b5 100644
--- a/ci/docker/python-free-threaded-wheel-windows-test-vs2022.dockerfile
+++ b/ci/docker/python-free-threaded-wheel-windows-test-vs2022.dockerfile
@@ -27,10 +27,10 @@ FROM ${base}
 ARG python=3.14
 
 # PYTHON_RELEASE is the python.org ftp directory, which for a pre-release is the
-# final release it leads to, e.g. 3.15.0/python-3.15.0rc1-amd64.exe
+# final release it leads to, e.g. 3.15.0/python-3.15.0rc2-amd64.exe
 # hadolint ignore=SC1072
 RUN (if "%python%"=="3.14" setx PYTHON_VERSION "3.14.7" && setx PYTHON_RELEASE "3.14.7") & \
-    (if "%python%"=="3.15" setx PYTHON_VERSION "3.15.0rc1" && setx PYTHON_RELEASE "3.15.0")
+    (if "%python%"=="3.15" setx PYTHON_VERSION "3.15.0rc2" && setx PYTHON_RELEASE "3.15.0")
 
 SHELL ["powershell", "-NoProfile", "-Command", "$ErrorActionPreference = 'Stop'; $ProgressPreference = 'SilentlyContinue';"]
 RUN $version = $env:PYTHON_VERSION; \
diff --git a/ci/scripts/install_python.sh b/ci/scripts/install_python.sh
index 7aeda91f727d..82cab4d5721d 100755
--- a/ci/scripts/install_python.sh
+++ b/ci/scripts/install_python.sh
@@ -30,8 +30,8 @@ versions=([3.11]=3.11.9
           [3.13]=3.13.14
           [3.14]=3.14.7
           [3.14t]=3.14.7
-          [3.15]=3.15.0rc1
-          [3.15t]=3.15.0rc1
+          [3.15]=3.15.0rc2
+          [3.15t]=3.15.0rc2
           )
 
 if [ "$#" -ne 2 ]; then
@@ -50,7 +50,7 @@ if [ "$platform" = "macOS" ]; then
     echo "Downloading Python installer..."
 
     # Match python.org directory by truncating any pre-release suffix: 
-    # 3.15.0rc1 is https://www.python.org/ftp/python/3.15.0/python-3.15.0rc1-macos11.pkg
+    # 3.15.0rc2 is https://www.python.org/ftp/python/3.15.0/python-3.15.0rc2-macos11.pkg
     release_version="${full_version%%[abrc]*}"
     fname="python-${full_version}-macos11.pkg"
     wget "https://www.python.org/ftp/python/${release_version}/${fname}"