diff --git a/.changelog/5654.internal.md b/.changelog/5654.internal.md
new file mode 100644
index 00000000000..0d46b9db224
--- /dev/null
+++ b/.changelog/5654.internal.md
@@ -0,0 +1 @@
+.github/dependabot: group rust dependency updates
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index f033db1a06e..c7013a2ab80 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -40,6 +40,21 @@ updates:
       time: "07:00"
     commit-message:
       prefix: "rust:"
+    groups:
+      # Update Tendermint dependencies together in a single PR.
+      tendermint:
+        patterns:
+          - tendermint
+          - tendermint-*
+      # Update all other dependencies in a single PR.
+      rust:
+        # Update all dependencies, unless explicitly ignored.
+        patterns:
+          - "*"
+        # Excluded dependencies are updated in separate PRs.
+        exclude-patterns: []
+    # Ignored depenednecies are ignored by dependabot.
+    ignore: []
     labels:
       - c:deps
       - rust