diff --git a/README.md b/README.md
index e93e021..e73bfac 100644
--- a/README.md
+++ b/README.md
@@ -204,7 +204,7 @@ The Docker image used by a particular step of the workflow can be identified by
| hifiasm |
- [hifiasm 0.19.4](https://github.com/chhylp123/hifiasm/releases/tag/0.19.4)
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/hifiasm) |
| htslib | - [htslib 1.14](https://github.com/samtools/htslib/releases/tag/1.14)
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/htslib) |
| paftools | - [paftools 2.26-r1182-dirty](https://github.com/lh3/minimap2/blob/bc588c0eeb26426d0d90a93fb0877358a389c515/misc/paftools.js)
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/align_hifiasm) |
-| parse-cohort | - python 3.8.10; custom scripts
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/parse-cohort) |
+| pyyaml | - python 3.8.10; custom scripts
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/f72e862bca2f209b9909e6043ef0197975762f27/docker/pyyaml) |
| samtools | - [samtools 1.14](https://github.com/samtools/samtools/releases/tag/1.14)
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/samtools) |
| yak | - [yak 0.1](https://github.com/lh3/yak/releases/tag/v0.1)
| [Dockerfile](https://github.com/PacificBiosciences/wdl-dockerfiles/tree/3560fcc5a84e044067cea9c9a7669cfc2659178e/docker/yak) |