diff --git a/M2Mqtt/nanoFramework.M2Mqtt.nfproj b/M2Mqtt/nanoFramework.M2Mqtt.nfproj
index 0f92b2e6..733b17ea 100644
--- a/M2Mqtt/nanoFramework.M2Mqtt.nfproj
+++ b/M2Mqtt/nanoFramework.M2Mqtt.nfproj
@@ -88,8 +88,8 @@
     <Reference Include="nanoFramework.Runtime.Native, Version=1.7.8.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.Runtime.Native.1.7.8\lib\nanoFramework.Runtime.Native.dll</HintPath>
     </Reference>
-    <Reference Include="nanoFramework.System.Collections, Version=1.5.56.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Collections.1.5.56\lib\nanoFramework.System.Collections.dll</HintPath>
+    <Reference Include="nanoFramework.System.Collections, Version=1.5.59.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.Collections.1.5.59\lib\nanoFramework.System.Collections.dll</HintPath>
     </Reference>
     <Reference Include="nanoFramework.System.Text, Version=1.3.16.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
       <HintPath>..\packages\nanoFramework.System.Text.1.3.16\lib\nanoFramework.System.Text.dll</HintPath>
diff --git a/M2Mqtt/packages.config b/M2Mqtt/packages.config
index 54ace13a..964b359a 100644
--- a/M2Mqtt/packages.config
+++ b/M2Mqtt/packages.config
@@ -3,7 +3,7 @@
   <package id="nanoFramework.CoreLibrary" version="1.16.11" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Events" version="1.11.29" targetFramework="netnano1.0" />
   <package id="nanoFramework.Runtime.Native" version="1.7.8" targetFramework="netnano1.0" />
-  <package id="nanoFramework.System.Collections" version="1.5.56" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Collections" version="1.5.59" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.82" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net" version="1.11.25" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="1.3.16" targetFramework="netnano1.0" />
diff --git a/M2Mqtt/packages.lock.json b/M2Mqtt/packages.lock.json
index 60cd09e5..f4b24a38 100644
--- a/M2Mqtt/packages.lock.json
+++ b/M2Mqtt/packages.lock.json
@@ -22,9 +22,9 @@
       },
       "nanoFramework.System.Collections": {
         "type": "Direct",
-        "requested": "[1.5.56, 1.5.56]",
-        "resolved": "1.5.56",
-        "contentHash": "epfglXpETWAi0UXqMYH+kqPVpQdjEcGnHCS3kitSVW3bGQ44qwNtXbjVGEWLjUUlRaaIn4ngwOOa9SVbf8qaqw=="
+        "requested": "[1.5.59, 1.5.59]",
+        "resolved": "1.5.59",
+        "contentHash": "wlA2L43ofEwwLY69fDaGhIPmqz5v7Ux8tdG/Iob/7QEn1KK8ecfDSLQlxWUIxxI+i1aTMvLcu8/whZPoq3OpLw=="
       },
       "nanoFramework.System.IO.Streams": {
         "type": "Direct",
diff --git a/nanoFramework.M2Mqtt.nuspec b/nanoFramework.M2Mqtt.nuspec
index f3a8d6c8..6a86079a 100644
--- a/nanoFramework.M2Mqtt.nuspec
+++ b/nanoFramework.M2Mqtt.nuspec
@@ -21,7 +21,7 @@
       <dependency id="nanoFramework.CoreLibrary" version="1.16.11" />
       <dependency id="nanoFramework.Runtime.Events" version="1.11.29" />
       <dependency id="nanoFramework.Runtime.Native" version="1.7.8" />
-      <dependency id="nanoFramework.System.Collections" version="1.5.56" />
+      <dependency id="nanoFramework.System.Collections" version="1.5.59" />
       <dependency id="nanoFramework.System.Net" version="1.11.25" />
     </dependencies>
   </metadata>