diff --git a/.ci/ctest2ci.py b/.ci/ctest2ci.py
index f0722f7216c7..c1bc6fccdb21 100755
--- a/.ci/ctest2ci.py
+++ b/.ci/ctest2ci.py
@@ -27,6 +27,7 @@
 #  - Colors for failing unit tests and test cases
 #  - Group control sequences to hide uninteresting output by default
 
+import os
 import sys
 import re
 import subprocess
@@ -37,6 +38,11 @@
 printable = set(string.printable)
 
 
+def set_output(name, value):
+    with open(os.environ['GITHUB_OUTPUT'], 'a') as fh:
+        print(f'{name}={value}', file=fh)
+
+
 def start_fold(tag):
     sys.stdout.write('::group::{}\n'.format(tag))
     fold_stack.append(tag)
@@ -111,7 +117,7 @@ def start_test_fold():
 
     if not in_failing_test and re.search('[0-9]+% tests passed, [0-9]+ tests failed out of', updated_line):
         tests_failing = re.match(r'.* ([0-9]+) tests failed', updated_line).group(1)
-        updated_line += '\n::set-output name=TESTS_FAILING::{}'.format(tests_failing)
+        set_output('TESTS_FAILING', tests_failing)
         end_fold()
 
         if re.search('100% tests passed', updated_line):
@@ -121,7 +127,7 @@ def start_test_fold():
         start_fold('submit')
     elif re.search('Test results submitted to', updated_line):
         cdash_url = re.match(r'.*(http.*)$', updated_line).group(1)
-        updated_line += '\n::set-output name=CDASH_URL::{}'.format(cdash_url)
+        set_output('CDASH_URL', cdash_url)
         end_fold()
 
     sys.stdout.write(updated_line)
diff --git a/tests/src/core/testqgscurve.cpp b/tests/src/core/testqgscurve.cpp
index 07c0f492127d..c56abdaacce0 100644
--- a/tests/src/core/testqgscurve.cpp
+++ b/tests/src/core/testqgscurve.cpp
@@ -90,7 +90,7 @@ void TestQgsCurve::curveToLine()
 
   /* op: Maximum of 10 units of difference, symmetric */
   TEST_C2L( circularString, 10, QgsAbstractGeometry::MaximumDifference,
-            "LineString (0 0, 29.29 70.71, 100 100, 170.71 70.71, 200 0)", 2 );
+            "LineString (1 0, 29.29 70.71, 100 100, 170.71 70.71, 200 0)", 2 );
 
   /* op: Maximum of 300 units (higher than sagitta) of difference, symmetric */
   /* See https://github.com/qgis/QGIS/issues/31832 */