diff --git a/CHANGELOG.md b/CHANGELOG.md
index d34de98..733e901 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/).
 ## [Unreleased]
 
 ### Added
+- Support `@Validation.MinItems` and `@Validation.MaxItems` annotations on collection-typed properties and action parameters to emit `minItems`/`maxItems` in the generated OpenAPI schema
 ### Changed
 ### Deprecated
 ### Removed
diff --git a/lib/compile/csdl.js b/lib/compile/csdl.js
index 0b113d5..cb02fcf 100644
--- a/lib/compile/csdl.js
+++ b/lib/compile/csdl.js
@@ -14,7 +14,7 @@ const CDS_TERMS = Object.freeze({
     Core: ['AcceptableMediaTypes', 'Computed', 'ComputedDefaultValue', 'DefaultNamespace', 'Description', 'Example', 'Immutable', 'LongDescription',
         'MediaType', 'OptionalParameter', 'Permissions', 'SchemaVersion'],
     JSON: ['Schema'],
-    Validation: ['AllowedValues', 'Exclusive', 'Maximum', 'Minimum', 'Pattern']
+    Validation: ['AllowedValues', 'Exclusive', 'Maximum', 'MaxItems', 'Minimum', 'MinItems', 'Pattern']
 })
 
 /**
diff --git a/lib/compile/csdl2openapi.js b/lib/compile/csdl2openapi.js
index 6c1ae31..f57dd08 100644
--- a/lib/compile/csdl2openapi.js
+++ b/lib/compile/csdl2openapi.js
@@ -2574,7 +2574,7 @@ see [Expand](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-prot
             }
         }
 
-        if (element[meta.voc.Validation.Maximum] != undefined) {
+        if (element[meta.voc.Validation.Maximum] !== undefined) {
             if (s.$ref) s = { allOf: [s] };
             if (isAnyOfSchema(s) && isNumberSchema(s.anyOf[0])) {
                 s.anyOf[0].maximum = element[meta.voc.Validation.Maximum];
@@ -2584,7 +2584,7 @@ see [Expand](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-prot
             if (element[meta.voc.Validation.Maximum + meta.voc.Validation.Exclusive]) s.exclusiveMaximum = true;
         }
 
-        if (element[meta.voc.Validation.Minimum] != undefined) {
+        if (element[meta.voc.Validation.Minimum] !== undefined) {
             if (s.$ref) s = { allOf: [s] };
             if (isAnyOfSchema(s) && isNumberSchema(s.anyOf[0])) {
                 s.anyOf[0].minimum = element[meta.voc.Validation.Minimum];
@@ -2599,6 +2599,10 @@ see [Expand](http://docs.oasis-open.org/odata/odata/v4.01/odata-v4.01-part1-prot
                 type: 'array',
                 items: s
             };
+            if (element[meta.voc.Validation.MinItems] !== undefined)
+                s.minItems = element[meta.voc.Validation.MinItems];
+            if (element[meta.voc.Validation.MaxItems] !== undefined)
+                s.maxItems = element[meta.voc.Validation.MaxItems];
         }
 
         const description = forParameter ? undefined : (element[meta.voc.Core.LongDescription] || element[meta.voc.Core.Description]);
diff --git a/lib/compile/types.d.ts b/lib/compile/types.d.ts
index b774ade..4f70f7e 100644
--- a/lib/compile/types.d.ts
+++ b/lib/compile/types.d.ts
@@ -23,7 +23,9 @@ type BooleanSchema = {
 
 type ArraySchema = {
     type: 'array',
-    items: Schema
+    items: Schema,
+    minItems?: number,
+    maxItems?: number
 }
 
 type ObjectSchema = {
diff --git a/test/lib/compile/data/annotations.json b/test/lib/compile/data/annotations.json
index 684dc2c..2dcdc41 100644
--- a/test/lib/compile/data/annotations.json
+++ b/test/lib/compile/data/annotations.json
@@ -90,6 +90,15 @@
                 "$Type": "Edm.Decimal",
                 "$Scale": 5
             },
+            "MinMaxItems": {
+                "$Collection": true,
+                "@Validation.MinItems": 1,
+                "@Validation.MaxItems": 5
+            },
+            "MinItems": {
+                "$Collection": true,
+                "@Validation.MinItems": 2
+            },
             "Example": {
                 "$Nullable": true,
                 "@Core.Example": {
diff --git a/test/lib/compile/data/annotations.openapi3.json b/test/lib/compile/data/annotations.openapi3.json
index 9077d79..ac36152 100644
--- a/test/lib/compile/data/annotations.openapi3.json
+++ b/test/lib/compile/data/annotations.openapi3.json
@@ -113,6 +113,10 @@
                   "Minimum desc",
                   "MinimumExt",
                   "MinimumExt desc",
+                  "MinMaxItems",
+                  "MinMaxItems desc",
+                  "MinItems",
+                  "MinItems desc",
                   "ExampleExt",
                   "ExampleExt desc",
                   "Computed",
@@ -149,6 +153,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -250,6 +256,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -566,6 +574,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -867,6 +877,10 @@
                   "Minimum desc",
                   "MinimumExt",
                   "MinimumExt desc",
+                  "MinMaxItems",
+                  "MinMaxItems desc",
+                  "MinItems",
+                  "MinItems desc",
                   "Example",
                   "Example desc",
                   "ExampleExt",
@@ -905,6 +919,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -1006,6 +1022,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -1113,6 +1131,10 @@
                   "Minimum desc",
                   "MinimumExt",
                   "MinimumExt desc",
+                  "MinMaxItems",
+                  "MinMaxItems desc",
+                  "MinItems",
+                  "MinItems desc",
                   "Example",
                   "Example desc",
                   "ExampleExt",
@@ -1151,6 +1173,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -1252,6 +1276,8 @@
                   "MaximumExt",
                   "Minimum",
                   "MinimumExt",
+                  "MinMaxItems",
+                  "MinItems",
                   "Example",
                   "ExampleExt",
                   "Computed",
@@ -2351,6 +2377,21 @@
             "x-sap-scale": 5,
             "exclusiveMinimum": true
           },
+          "MinMaxItems": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "minItems": 1,
+            "maxItems": 5
+          },
+          "MinItems": {
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "minItems": 2
+          },
           "Example": {
             "type": "string",
             "nullable": true,