diff --git a/examples/Project.toml b/examples/Project.toml
index 26d1481..5b3c159 100644
--- a/examples/Project.toml
+++ b/examples/Project.toml
@@ -8,6 +8,10 @@ RRTMGP = "a01a1ee8-cea4-48fc-987c-fc7878d79da1"
 SpeedyWeather = "9e226e20-d153-4fed-8a5b-493def4f21a9"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
+LowerTriangularArrays = "ed20b33f-a660-45d0-a353-9c8c20bb5814"
+RingGrids = "d1845624-ad4f-453b-8ff4-a8db365bf3a7"
+SpeedyTransforms = "ed023a3f-7a3c-42dd-bab6-68c21c8c3105"
+SpeedyWeatherInternals = "34489162-d270-4603-8b96-37b04f830d73"
 
 [compat]
 CairoMakie = "0.12, 0.13"
@@ -19,4 +23,9 @@ SpeedyWeather = "0.23"
 NumericalRadiation = {path = ".."}
 # SpeedyWeather's `Radiation` bundle is not released yet; until then use the
 # development branch (monorepo subdirectory). Needs Julia >= 1.11.
+# SpeedyWeather main depends on unreleased versions of its sibling packages: all from the monorepo's main
 SpeedyWeather = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyWeather"}
+LowerTriangularArrays = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "LowerTriangularArrays"}
+RingGrids = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "RingGrids"}
+SpeedyTransforms = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyTransforms"}
+SpeedyWeatherInternals = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyWeatherInternals"}
diff --git a/test/speedyweather/Project.toml b/test/speedyweather/Project.toml
index 8cedc16..07aa5b8 100644
--- a/test/speedyweather/Project.toml
+++ b/test/speedyweather/Project.toml
@@ -14,10 +14,19 @@ NumericalRadiation = "cd8119b0-1744-44d6-9ede-6ad1ad750b26"
 SpeedyWeather = "9e226e20-d153-4fed-8a5b-493def4f21a9"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+LowerTriangularArrays = "ed20b33f-a660-45d0-a353-9c8c20bb5814"
+RingGrids = "d1845624-ad4f-453b-8ff4-a8db365bf3a7"
+SpeedyTransforms = "ed023a3f-7a3c-42dd-bab6-68c21c8c3105"
+SpeedyWeatherInternals = "34489162-d270-4603-8b96-37b04f830d73"
 
 [compat]
 SpeedyWeather = "0.23"
 
 [sources]
 NumericalRadiation = {path = "../.."}
+# SpeedyWeather main depends on unreleased versions of its sibling packages: all from the monorepo's main
 SpeedyWeather = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyWeather"}
+LowerTriangularArrays = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "LowerTriangularArrays"}
+RingGrids = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "RingGrids"}
+SpeedyTransforms = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyTransforms"}
+SpeedyWeatherInternals = {url = "https://github.com/SpeedyWeather/SpeedyWeather.jl.git", rev = "main", subdir = "SpeedyWeatherInternals"}