diff --git a/C/CombinatorialBandits/Compat.toml b/C/CombinatorialBandits/Compat.toml
index 16d87ec41013b31..de7d2d0ecc31c81 100644
--- a/C/CombinatorialBandits/Compat.toml
+++ b/C/CombinatorialBandits/Compat.toml
@@ -30,3 +30,7 @@ DataStructures = "0.16-0.18"
 Distributions = "0.16-0.24"
 Hungarian = "0.6"
 JuMP = "0.21-0.22"
+
+["0.2.1-0"]
+Kombinator = "0.1"
+NonsmoothOptim = "0.1"
diff --git a/C/CombinatorialBandits/Deps.toml b/C/CombinatorialBandits/Deps.toml
index 1e97a585d0489f1..33ab55093cd4fde 100644
--- a/C/CombinatorialBandits/Deps.toml
+++ b/C/CombinatorialBandits/Deps.toml
@@ -10,3 +10,7 @@ Munkres = "4cefb923-2b6f-58c4-9e65-6821f26b7b51"
 
 ["0.2-0"]
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+
+["0.2.1-0"]
+Kombinator = "c77a6b6f-abe2-4dd7-b2b3-8d5a1483deca"
+NonsmoothOptim = "0dfc7a1c-e419-4470-a3bc-787e626244db"
diff --git a/C/CombinatorialBandits/Versions.toml b/C/CombinatorialBandits/Versions.toml
index 79a62f02da99fe0..24fdde8686ef211 100644
--- a/C/CombinatorialBandits/Versions.toml
+++ b/C/CombinatorialBandits/Versions.toml
@@ -15,3 +15,6 @@ git-tree-sha1 = "c971245f0409a6861183336bc06882b541fa4f0e"
 
 ["0.2.0"]
 git-tree-sha1 = "d425930573a086e90f11c613c0a41eee9c342694"
+
+["0.2.1"]
+git-tree-sha1 = "67831d9c7986baf763b213e36d7807f94007eb4e"