diff --git a/.github/workflows/osx.yml b/.github/workflows/osx.yml
index fb546a868..00fd99576 100644
--- a/.github/workflows/osx.yml
+++ b/.github/workflows/osx.yml
@@ -18,8 +18,9 @@ jobs:
       fail-fast: false
       matrix:
         os:
-        - 12
         - 13
+        - 14
+        - 15
 
     steps:
 
diff --git a/environment-dev.yml b/environment-dev.yml
index acfeaa22d..39fa4ab21 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -6,6 +6,6 @@ dependencies:
 - xtl=0.7.5
 - xsimd=11.1.0
 - nlohmann_json
-- doctest=2.4.7
+- doctest
 - pre-commit
 - ninja