diff --git a/pyproject.toml b/pyproject.toml
index cf2ac337..005e1170 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,8 +59,13 @@ dev = [
   "mypy>=1.8.0; python_version >= '3.8'",
   "pre-commit>=2.6.0",
 ]
+# This one is a bit special and cannot depend on other features,
+# because if it depends on `g2p[api]` then we end up with
+# `g2p==SOMEVERSION` in requirements.txt and we DO NOT want that to
+# happen.
+# See https://github.com/jazzband/pip-tools/issues/2002
+# See https://github.com/juftin/hatch-pip-compile/issues/78
 prod = [
-  "g2p[api]",
   "gunicorn>=21.1.0",
 ]
 docs = [
@@ -125,10 +130,11 @@ routes = "flask --app g2p.app routes"
 
 [tool.hatch.envs.prod]
 template = "api"
+features = [ "api", "prod" ]
 type = "pip-compile"
 python = "3.10"
 lock-filename = "requirements.txt"
-features = [ "prod" ]
+pip-compile-verbose = false
 
 [tool.hatch.envs.prod.scripts]
 serve = "gunicorn --worker-class eventlet -w 1 g2p.app:APP --no-sendfile"
diff --git a/requirements.txt b/requirements.txt
index cf42bb17..f8360643 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,14 @@
 #
 # - click>=8.0.4
 # - coloredlogs>=15.0.1
+# - networkx>=2.6
+# - openpyxl
+# - panphon>=0.19
+# - pydantic>=2.3
+# - pyyaml>=5.2
+# - regex
+# - text-unidecode
+# - tqdm
 # - eventlet!=0.36.0,>=0.33.0
 # - flask-cors>=3.0.9
 # - flask-restful>=0.3.9
@@ -10,16 +18,8 @@
 # - flask-talisman>=0.7.0
 # - flask; python_version >= "3.8"
 # - flask<2.3; python_version < "3.8"
-# - networkx>=2.6
-# - openpyxl
-# - panphon>=0.19
-# - pydantic>=2.3
 # - python-engineio>=4.0.0
 # - python-socketio>=5.0.0
-# - pyyaml>=5.2
-# - regex
-# - text-unidecode
-# - tqdm
 # - gunicorn>=21.1.0
 #
 
@@ -43,7 +43,7 @@ editdistance==0.8.1
     # via panphon
 et-xmlfile==1.1.0
     # via openpyxl
-eventlet==0.35.2
+eventlet==0.36.1
     # via hatch.envs.prod
 flask==3.0.2 ; python_version >= "3.8"
     # via