diff --git a/common.wdl b/common.wdl
index fdc6d1858b9b4f9bc6b6684974d46e81aa8bf8dd..8d3097d3c1fed005d6b12cc62962c71e742af552 100644
--- a/common.wdl
+++ b/common.wdl
@@ -161,7 +161,8 @@ task YamlToJson {
     input {
         File yaml
         String outputJson = basename(yaml, "\.ya?ml$") + ".json"
-        String dockerImage = "biowdl/pyyaml:3.13-py37-slim"
+        # biowdl-input-converter has python and pyyaml.
+        String dockerImage = "quay.io/biocontainers/biowdl-input-converter:0.1.0--py_0"
     }
     command {
         set -e