diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f231ac..dbcdcfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
-### 0.1.8 (Upcoming release) 
+### 0.1.9 (Upcoming Release)
+
+
+### 0.1.8
 
 - pmedian now returns a PMedianResult object rather than a Dict{String, Any}.
+- Implement knapsack() for solving the classical Knapsack problem using mathematical optimization.
 
 ### 0.1.7
 
diff --git a/Project.toml b/Project.toml
index a9ae842..c72619c 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "OperationsResearchModels"
 uuid = "8042aa49-e599-49ec-a8f7-b5b80cc82a88"
 authors = ["Mehmet Hakan Satman <mhsatman@gmail.com>"]
-version = "0.1.7"
+version = "0.1.8"
 
 [deps]
 HiGHS = "87dc4568-4c63-4d18-b0c0-bb2238e4078b"
diff --git a/README.md b/README.md
index 443a3e7..60c8745 100644
--- a/README.md
+++ b/README.md
@@ -310,3 +310,26 @@ Status: CONVERGED!
 [ Info: Objective value: 183.33333333333334
 
 ```
+
+
+## The Classical Knapsack Problem
+
+```julia
+julia> using OperationsResearchModels
+
+julia> values = [1, 5, 89, 10];
+
+julia> weights = [5, 6, 3, 5];
+
+julia> result = knapsack(values, weights, 8);
+
+julia> result.selected
+4-element Vector{Bool}:
+ 0
+ 0
+ 1
+ 1
+
+julia> result.objective
+99.0
+```
\ No newline at end of file