diff --git a/fixed-vector/ChangeLog.md b/fixed-vector/ChangeLog.md
index 6d5192c..4dc9904 100644
--- a/fixed-vector/ChangeLog.md
+++ b/fixed-vector/ChangeLog.md
@@ -1,3 +1,8 @@
+2.1.1.0 [2026.02.28]
+-------------
+* Missing `Prod` and `Vector` instances are added for `ContVec`.
+
+
 2.1.0.0 [2026.01.27]
 -------------
 * New API for working with vectors that are not parametric in element:
diff --git a/fixed-vector/Data/Vector/Fixed/Mono.hs b/fixed-vector/Data/Vector/Fixed/Mono.hs
index 020266e..25f3fbf 100644
--- a/fixed-vector/Data/Vector/Fixed/Mono.hs
+++ b/fixed-vector/Data/Vector/Fixed/Mono.hs
@@ -910,6 +910,13 @@ pattern V4 t x y z <- (convert -> (t,x,y,z)) where
 -- Instances
 ----------------------------------------------------------------
 
+instance (ArityPeano n) => Prod a (C.ContVec n a) where
+  inspect   = C.inspect
+  construct = C.construct
+  {-# INLINE inspect   #-}
+  {-# INLINE construct #-}
+instance (ArityPeano n) => Vector a (C.ContVec n a) where
+
 instance Prod a (Complex a) where
   inspect (r :+ i) (C.Fun f) = f r i
   construct = C.Fun (:+)
diff --git a/fixed-vector/fixed-vector.cabal b/fixed-vector/fixed-vector.cabal
index 8e2bd39..0fe5a79 100644
--- a/fixed-vector/fixed-vector.cabal
+++ b/fixed-vector/fixed-vector.cabal
@@ -2,7 +2,7 @@ Cabal-Version:  3.0
 Build-Type:     Simple
 
 Name:           fixed-vector
-Version:        2.1.0.0
+Version:        2.1.1.0
 Synopsis:       Generic vectors with statically known size.
 Description:
   Generic library for vectors with statically known