From d3c9f5d825962c7b4ac29277827129620c24e3ee Mon Sep 17 00:00:00 2001
From: Greg Lucas <greg.m.lucas@gmail.com>
Date: Sun, 15 Mar 2026 13:55:49 -0600
Subject: [PATCH] MNT: Temporarily add an upper pin to PROJ

---
 environment.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/environment.yml b/environment.yml
index 54495e3f7..4c028f23b 100644
--- a/environment.yml
+++ b/environment.yml
@@ -13,6 +13,10 @@ dependencies:
   - shapely>=2.0
   - pyshp>=2.3.1
   - pyproj>=3.6.0
+  # PROJ 9.8 changes the way equicylindrical projections (PlateCarree)
+  # are transformed, which causes some issues. Temporary pin PROJ < 9.8
+  # to avoid these for now.
+  - proj<9.8
   # The testing label has the proper version of freetype included
   - conda-forge/label/testing::matplotlib-base>=3.6