diff --git a/docs/working_groups.md b/docs/working_groups.md
index 1d0fca99..1ece6a2a 100644
--- a/docs/working_groups.md
+++ b/docs/working_groups.md
@@ -26,42 +26,26 @@ Join the community on Slack: [join.slack.com/t/opensemanticx](https://join.slack
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 | **Lead** | Will Pugh |
-| **Slack channel** | `#metric-language-working-group` |
-| **Google Calendar** | _link TBD_ |
-
-## 2. Composability
-
-| | |
-|---|---|
-| **Lead** | Dianne Wood (AtScale) |
-| **Slack channel** | `#wg-composability` |
-| **Google Calendar** | _link TBD_ |
+| **Slack channel** | [`#ossie-metric-language-wg`](https://apache-ossie.slack.com/archives/C0ADR49SBEK) |
+| **Google Calendar** | [Apache Ossie (incubating) Calendar](https://calendar.google.com/calendar/embed?src=a34f013e8d8f9cda419c66af89ab47488644d735fdfe3b0cb2ced90a880a2a95%40group.calendar.google.com&ctz=America%2FChicago) |
 
-## 3. Catalog
+## 2. Catalog
 
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 | **Lead** | Shubham Bhargav (Atlan) |
-| **Slack channel** | `#wg-catalog` |
-| **Google Calendar** | _link TBD_ |
+| **Slack channel** | [`#ossie-catalog-wg`](https://apache-ossie.slack.com/archives/C0B8N5VQG1Y) |
+| **Google Calendar** | [Apache Ossie (incubating) Calendar](https://calendar.google.com/calendar/embed?src=a34f013e8d8f9cda419c66af89ab47488644d735fdfe3b0cb2ced90a880a2a95%40group.calendar.google.com&ctz=America%2FChicago) |
 
-## 4. Ontology
+## 3. Ontology
 
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 |---|---|
 | **Lead** | Kurt (Relational AI) |
-| **Slack channel** | `#osi-ontology` |
-| **Google Calendar** | _link TBD_ |
-
-## 5. Sync API
-
-| | |
-|---|---|
-| **Lead** | Francois Lopitaux (ThoughtSpot) |
-| **Slack channel** | `#wg-sync-api` |
-| **Google Calendar** | _link TBD_ |
+| **Slack channel** | [`#ossie-ontology-wg`](https://apache-ossie.slack.com/archives/C0ACQJVFVRN) |
+| **Google Calendar** | [Apache Ossie (incubating) Calendar](https://calendar.google.com/calendar/embed?src=a34f013e8d8f9cda419c66af89ab47488644d735fdfe3b0cb2ced90a880a2a95%40group.calendar.google.com&ctz=America%2FChicago) |
 
-## 6. Financial Services Common Semantics
+## 4. Financial Services Common Semantics
 
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