diff --git a/e2e-tests/oauth-flow/rfc021/docker-compose.yml b/e2e-tests/oauth-flow/rfc021/docker-compose.yml
index 57dae33a7d..c34f0bad59 100644
--- a/e2e-tests/oauth-flow/rfc021/docker-compose.yml
+++ b/e2e-tests/oauth-flow/rfc021/docker-compose.yml
@@ -11,6 +11,9 @@ services:
       - "./node-A/data:/opt/nuts/data:rw"
       - "../../tls-certs/nodeA-backend-certificate.pem:/opt/nuts/certificate-and-key.pem:ro"
       - "../../tls-certs/truststore.pem:/opt/nuts/truststore.pem:ro"
+      # did:web resolver uses the OS CA bundle, but e2e tests use a self-signed CA which can be found in truststore.pem
+      # So we need to mount that file to the OS CA bundle location, otherwise did:web resolving will fail due to untrusted certs.
+      - "../../tls-certs/truststore.pem:/etc/ssl/certs/Nuts_RootCA.pem:ro"
       - "./node-A/presentationexchangemapping.json:/opt/nuts/presentationexchangemapping.json:ro"
     healthcheck:
       interval: 1s # Make test run quicker by checking health status more often
@@ -36,6 +39,9 @@ services:
       - "../../tls-certs/nodeB-certificate.pem:/opt/nuts/certificate-and-key.pem:ro"
       - "../../tls-certs/truststore.pem:/opt/nuts/truststore.pem:ro"
       - "../../tls-certs/truststore.pem:/etc/ssl/certs/truststore.pem:ro"
+      # did:web resolver uses the OS CA bundle, but e2e tests use a self-signed CA which can be found in truststore.pem
+      # So we need to mount that file to the OS CA bundle location, otherwise did:web resolving will fail due to untrusted certs.
+      - "../../tls-certs/truststore.pem:/etc/ssl/certs/Nuts_RootCA.pem:ro"
     healthcheck:
       interval: 1s # Make test run quicker by checking health status more often
   nodeB: