diff --git a/src/rattler_build_conda_compat/modify_recipe.py b/src/rattler_build_conda_compat/modify_recipe.py
index 45c24fb..2c73f0b 100644
--- a/src/rattler_build_conda_compat/modify_recipe.py
+++ b/src/rattler_build_conda_compat/modify_recipe.py
@@ -1,21 +1,27 @@
 from __future__ import annotations
 
+import copy
 import hashlib
 import io
 import re
+import logging
 from typing import TYPE_CHECKING, Any, Literal
 
 import requests
 from ruamel.yaml import YAML
 
 from rattler_build_conda_compat.jinja.jinja import jinja_env, load_recipe_context
-from rattler_build_conda_compat.recipe_sources import get_all_sources, Source
+from rattler_build_conda_compat.recipe_sources import Source, get_all_sources
 
 if TYPE_CHECKING:
     from pathlib import Path
 
+logger = logging.getLogger(__name__)
+
 yaml = YAML()
 yaml.preserve_quotes = True
+yaml.width = 4096
+yaml.indent(mapping=2, sequence=2, offset=0)
 
 
 def _update_build_number_in_context(recipe: dict[str, Any], new_build_number: int) -> bool:
@@ -109,6 +115,7 @@ def update_hash(source: Source, url: str, hash_: Hash | None) -> None:
     else:
         # download and hash the file
         hasher = hashlib.sha256()
+        logger.info("Retrieving and hashing %s", url)
         with requests.get(url, stream=True, timeout=100) as r:
             for chunk in r.iter_content(chunk_size=4096):
                 hasher.update(chunk)
@@ -142,8 +149,10 @@ def update_version(file: Path, new_version: str, hash_: Hash | None) -> str:
 
     # set up the jinja context
     env = jinja_env()
-    context = data.get("context", {})
+    context = copy.deepcopy(data.get("context", {}))
     context_variables = load_recipe_context(context, env)
+    # for r-recipes we add the default `cran_mirror` variable
+    context_variables["cran_mirror"] = "https://cran.r-project.org"
 
     for source in get_all_sources(data):
         # render the whole URL and find the hash
diff --git a/tests/data/version/future_tests/r1.yaml b/tests/data/version/test_3/expected.yaml
similarity index 100%
rename from tests/data/version/future_tests/r1.yaml
rename to tests/data/version/test_3/expected.yaml
diff --git a/tests/data/version/test_3/recipe.yaml b/tests/data/version/test_3/recipe.yaml
new file mode 100644
index 0000000..cad30b7
--- /dev/null
+++ b/tests/data/version/test_3/recipe.yaml
@@ -0,0 +1,11 @@
+context:
+  name: pytest-aio
+  version: 1.8.1
+
+package:
+  name: ${{ name|lower }}
+  version: ${{ version }}
+
+source:
+  url: https://pypi.io/packages/source/${{ name[0] }}/${{ name }}/${{ name.replace('-', '_') }}-${{ version }}.tar.gz
+  sha256: 97dcbc1c5ac991705f32bb2cf72f9ba94a8889fd0295d29ed4d7252b3e158684
diff --git a/tests/data/version/future_tests/r2.yaml b/tests/data/version/test_4/expected.yaml
similarity index 63%
rename from tests/data/version/future_tests/r2.yaml
rename to tests/data/version/test_4/expected.yaml
index ce7d684..a4c18d8 100644
--- a/tests/data/version/future_tests/r2.yaml
+++ b/tests/data/version/test_4/expected.yaml
@@ -9,6 +9,6 @@ package:
 
 source:
   url:
-    - ${{ cran_mirror }}/src/contrib/systemfit_{{ version }}.tar.gz
-    - ${{ cran_mirror }}/src/contrib/Archive/systemfit/systemfit_{{ version }}.tar.gz
+  - ${{ cran_mirror }}/src/contrib/systemfit_${{ version }}.tar.gz
+  - ${{ cran_mirror }}/src/contrib/Archive/systemfit/systemfit_${{ version }}.tar.gz
   sha256: 5994fbb81f1678325862414f58328cdc2c46d47efa1f23218e9416a4da431ce2
diff --git a/tests/data/version/test_4/recipe.yaml b/tests/data/version/test_4/recipe.yaml
new file mode 100644
index 0000000..fb35a82
--- /dev/null
+++ b/tests/data/version/test_4/recipe.yaml
@@ -0,0 +1,14 @@
+context:
+  version: "1.1-26"
+  posix: ${{ 'm2' if win else '' }}
+  native: ${{ 'm2w64' if win else '' }}
+
+package:
+  name: r-systemfit
+  version: ${{ version|replace("-", "_") }}
+
+source:
+  url:
+    - ${{ cran_mirror }}/src/contrib/systemfit_${{ version }}.tar.gz
+    - ${{ cran_mirror }}/src/contrib/Archive/systemfit/systemfit_${{ version }}.tar.gz
+  sha256: a99a59787dc5556afe9a1a153f2a3a8047aa7d357aab450101e20ab1f329f758
diff --git a/tests/test_recipe_modification.py b/tests/test_recipe_modification.py
index 4e5824a..c3550a7 100644
--- a/tests/test_recipe_modification.py
+++ b/tests/test_recipe_modification.py
@@ -16,8 +16,18 @@ def test_build_number_mod(data_dir: Path) -> None:
 
 def test_version_mod(data_dir: Path) -> None:
     tests = data_dir / "version"
-    test_recipes = tests.glob("**/recipe.yaml")
+    test_recipes = [tests / "test_1/recipe.yaml", tests / "test_2/recipe.yaml"]
     for recipe in test_recipes:
         result = update_version(recipe, "0.25.0", None)
         expected = recipe.parent / "expected.yaml"
         assert result == expected.read_text()
+
+    test_python = tests / "test_3/recipe.yaml"
+    result = update_version(test_python, "1.9.0", None)
+    expected = test_python.parent / "expected.yaml"
+    assert result == expected.read_text()
+
+    test_cran = tests / "test_4/recipe.yaml"
+    result = update_version(test_cran, "1.1-30", None)
+    expected = test_cran.parent / "expected.yaml"
+    assert result == expected.read_text()