Herokuにデプロイする際、numpyが上手くインストールできずにエラーになる。

実現したいこと

Flaskで作成したwebアプリをHerokuにデプロイする

前提

PythonのFlaskを用いてwebアプリを作っています。
Herokuにデプロイした際に以下の問題が発生しました。

発生している問題・エラーメッセージ

ビルドログを読む限り、NumPyのインストール時にビルドが失敗していようです。

Herokuのビルドログ

-----> Building on the Heroku-22 stack
-----> Using buildpack: heroku/python
-----> Python app detected
-----> Using Python version specified in runtime.txt
 !     
 !     A Python security update is available! Upgrade as soon as possible to: python-3.11.3
 !     See: https://devcenter.heroku.com/articles/python-runtimes
 !     
-----> Installing python-3.11.2
-----> Installing pip 23.1.2, setuptools 67.7.2 and wheel 0.40.0
-----> Installing SQLite3
-----> Installing requirements with pip
       Collecting backports.entry-points-selectable==1.1.0 (from -r requirements.txt (line 1))
         Downloading backports.entry_points_selectable-1.1.0-py2.py3-none-any.whl (6.2 kB)
       Collecting cachetools==4.2.4 (from -r requirements.txt (line 2))
         Downloading cachetools-4.2.4-py3-none-any.whl (10 kB)
  
（省略）

                   gcc: numpy/core/src/umath/ufunc_object.c
                   gcc: numpy/core/src/umath/extobj.c
                   gcc: build/src.linux-x86_64-3.11/numpy/core/src/umath/scalarmath.c
                   error: Command "gcc -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -fPIC -DNPY_INTERNAL_BUILD=1 -DHAVE_NPY_CONFIG_H=1 -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE=1 -Ibuild/src.linux-x86_64-3.11/numpy/core/src/umath -Ibuild/src.linux-x86_64-3.11/numpy/core/src/npymath -Ibuild/src.linux-x86_64-3.11/numpy/core/src/common -Inumpy/core/include -Ibuild/src.linux-x86_64-3.11/numpy/core/include/numpy -Inumpy/core/src/common -Inumpy/core/src -Inumpy/core -Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath -Inumpy/core/src/npysort -I/app/.heroku/python/include/python3.11 -Ibuild/src.linux-x86_64-3.11/numpy/core/src/common -Ibuild/src.linux-x86_64-3.11/numpy/core/src/npymath -c build/src.linux-x86_64-3.11/numpy/core/src/multiarray/scalartypes.c -o build/temp.linux-x86_64-3.11/build/src.linux-x86_64-3.11/numpy/core/src/multiarray/scalartypes.o -MMD -MF build/temp.linux-x86_64-3.11/build/src.linux-x86_64-3.11/numpy/core/src/multiarray/scalartypes.o.d -std=c99" failed with exit status 1
                   [end of output]
             
               note: This error originates from a subprocess, and is likely not a problem with pip.
               ERROR: Failed building wheel for numpy
             Failed to build numpy
             ERROR: Could not build wheels for numpy, which is required to install pyproject.toml-based projects
             [end of output]
         
         note: This error originates from a subprocess, and is likely not a problem with pip.
       error: subprocess-exited-with-error
       
       × pip subprocess to install build dependencies did not run successfully.
       │ exit code: 1
       ╰─> See above for output.
       
       note: This error originates from a subprocess, and is likely not a problem with pip.
 !     Push rejected, failed to compile Python app.
 !     Push failed

該当のソースコード

requirements.txtの内容

requirements.txt
1backports.entry-points-selectable==1.1.0
2cachetools==4.2.4
3certifi==2021.10.8
4charset-normalizer==2.0.6
5click==8.0.1
6distlib==0.3.2
7filelock==3.0.12
8Flask==2.0.2
9Flask-Login==0.5.0
10Flask-SQLAlchemy==2.5.1
11google-auth==2.3.0
12google-auth-oauthlib==0.4.6
13greenlet==1.1.0
14gspread==4.0.1
15gunicorn==20.1.0
16idna==3.2
17itsdangerous==2.0.1
18Jinja2==3.0.1
19MarkupSafe==2.0.1
20numpy==1.19.5
21oauthlib==3.1.1
22pandas==1.3.3
23platformdirs==2.0.2
24psycopg2==2.9.3
25psycopg2-binary==2.9.3
26pyasn1==0.4.8
27pyasn1-modules==0.2.8
28python-dateutil==2.8.2
29pytz==2021.3
30requests==2.26.0
31requests-oauthlib==1.3.0
32rsa==4.7.2
33six==1.16.0
34SQLAlchemy==1.4.21
35urllib3==1.26.7
36virtualenv==20.6.0
37Werkzeug==2.0.1