diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index eb0617752948052ff1ed0eeb9f8c324be7fa9855..24e12b7444fb1c1de2ee13930b6a4939c0924a47 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -38,8 +38,10 @@ validate:
   stage: test
   needs: ["trigger_prepare"]
   script:
-    - cwltool --validate workflows/pulp2-xxyy-8bit-requantisation.cwl
+#    Excluding input JSON from validation now as CI/CD can not correctly deal with files specified in secondaryFiles field in CWL. 
+#    Probably CI/CD checks the presence of these data at the server where gitlab runner runs.
 #    - cwltool --validate workflows/pulp2-xxyy-8bit-requantisation.cwl tests/digitize_das6_input.json    
+    - cwltool --validate workflows/pulp2-xxyy-8bit-requantisation.cwl
 
 docker_build:
   stage: images