Update the version number to 2.1.8
diff --git a/tests/suites/test_suite_version.data b/tests/suites/test_suite_version.data
index 6a6ca0c..e5d1eea 100644
--- a/tests/suites/test_suite_version.data
+++ b/tests/suites/test_suite_version.data
@@ -1,8 +1,8 @@
 Check compiletime library version
-check_compiletime_version:"2.1.7"
+check_compiletime_version:"2.1.8"
 
 Check runtime library version
-check_runtime_version:"2.1.7"
+check_runtime_version:"2.1.8"
 
 Check for MBEDTLS_VERSION_C
 check_feature:"MBEDTLS_VERSION_C":0