diff --git a/build.gradle b/build.gradle
index 03dffaf..6d6d5b1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -18,7 +18,7 @@ apply plugin: 'kotlinx-serialization'
 
 
 group = 'org.domaindrivenarchitecture.provs'
-version = '0.9.9-SNAPSHOT'
+version = 'release-0.9.9'
 
 repositories {
     mavenCentral()
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
index 0fc414e..277e013 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/DesktopService.kt
@@ -1,7 +1,6 @@
 package org.domaindrivenarchitecture.provs.desktop.domain
 
 import org.domaindrivenarchitecture.provs.desktop.infrastructure.*
-import org.domaindrivenarchitecture.provs.desktop.infrastructure.getConfig
 import org.domaindrivenarchitecture.provs.framework.core.Prov
 import org.domaindrivenarchitecture.provs.framework.core.ProvResult
 import org.domaindrivenarchitecture.provs.framework.ubuntu.git.provisionGit
@@ -129,7 +128,11 @@ fun Prov.provisionWorkplaceSubmodules(
 ) = task {
     if (submodules.contains(DesktopSubmodule.PROVSBINARIES.name.lowercase())) {
         aptInstall("jarwrapper")
-        installBinariesProvs()
+        installBinariesProvs(true)
+    }
+    if (submodules.contains(DesktopSubmodule.C4KBINARIES.name.lowercase())) {
+        aptInstall("jarwrapper")
+        installBinariesC4k(true)
     }
     ProvResult(true)
 }
\ No newline at end of file
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/Submodule.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/Submodule.kt
index 3d65cbf..df645cc 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/Submodule.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/domain/Submodule.kt
@@ -1,5 +1,5 @@
 package org.domaindrivenarchitecture.provs.desktop.domain
 
 enum class DesktopSubmodule {
-    PROVSBINARIES
+    PROVSBINARIES, C4KBINARIES
 }
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesC4k.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesC4k.kt
index c6d6d4b..94cda73 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesC4k.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesC4k.kt
@@ -5,37 +5,51 @@ import org.domaindrivenarchitecture.provs.framework.core.ProvResult
 import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.createDirs
 import org.domaindrivenarchitecture.provs.framework.ubuntu.web.base.downloadFromURL
 
-fun Prov.installBinariesC4k() = task {
+fun Prov.installBinariesC4k(reprovision: Boolean = false) = task {
 
     val installationPath = " /usr/local/bin/"
 
     createDirs(installationPath, sudo = true)
 
-    class Binary(val jobId: String, val fileName: String, val sha256sum: String)
-
-    fun downloadC4k(bin : Binary) {
-        with(bin) {
-            downloadFromURL(
-                "https://gitlab.com/domaindrivenarchitecture/c4k-nextcloud/-/jobs/${jobId}/artifacts/raw/target/uberjar/${fileName}",
-                path = installationPath,
-                filename = fileName,
-                sha256sum = sha256sum,
-                sudo = true
-            )
-            cmd("chmod 755 $installationPath$fileName", sudo = true)
-        }
-
+    fun Prov.downloadC4k(jobId: String, c4kName: String, sha256sum: String) = task {
+        val fileName = "$c4kName-standalone.jar"
+        downloadFromURL(
+            "https://gitlab.com/domaindrivenarchitecture/$c4kName/-/jobs/${jobId}/artifacts/raw/target/uberjar/${fileName}",
+            path = installationPath,
+            filename = fileName,
+            sha256sum = sha256sum,
+            sudo = true,
+            overwrite = reprovision
+        )
+        // remark: chmod fails if file could not be downloaded (e.g. due to wrong link or checksum)
+        cmd("chmod 755 $installationPath$fileName", sudo = true)
     }
-    downloadC4k(Binary("2138015489", "c4k-nextcloud-standalone.jar",
-        "47b6f71664903816eab0e4950d4ab0d564ea365ddb2b9c2a7bcb2736a2d941cb"))
-    downloadC4k(Binary("2136806347", "c4k-jira-standalone.jar",
-        "585f26e3b70bec32f052f488688718d8c9a6d15222b8a2141a69fa1bea136179"))
-    downloadC4k(Binary("2136561868", "c4k-keycloak-standalone.jar",
-        "81bd605b160c3d339cba745433271412eaa716cb7856d0227a1eb063badc9"))
-    downloadC4k(Binary("2136778473", "c4k-mastodon-bot-standalone.jar",
-        "9dbf981ce8b4aea92e0f45b182a39d2caffceb6e8f78ddfeeb49e74ca4a8d37d"))
-    downloadC4k(Binary("2136801572", "c4k-shynet-standalone.jar",
-        "4fa0d41896f2a9ea89ca70c475f9d1f89edf3fadf82d6b39789b90732f795429"))
+
+    downloadC4k(
+        "2138015489",
+        "c4k-nextcloud",
+        "47b6f71664903816eab0e4950d4ab0d564ea365ddb2b9c2a7bcb2736a2d941cb"
+    )
+    downloadC4k(
+        "2136806347",
+        "c4k-jira",
+        "585f26e3b70bec32f052f488688718d8c9a6d15222b8a2141a69fa1bea136179"
+    )
+    downloadC4k(
+        "2136561868",
+        "c4k-keycloak",
+        "81bd605b160c3d339cba745433271412eaa716cb7856d0227a1eb063badc9d9c"
+    )
+    downloadC4k(
+        "2136778473",
+        "c4k-mastodon-bot",
+        "9dbf981ce8b4aea92e0f45b182a39d2caffceb6e8f78ddfeeb49e74ca4a8d37d"
+    )
+    downloadC4k(
+        "2136801572",
+        "c4k-shynet",
+        "4fa0d41896f2a9ea89ca70c475f9d1f89edf3fadf82d6b39789b90732f795429"
+    )
 
     ProvResult(true)
 
diff --git a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesProvs.kt b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesProvs.kt
index 41f2264..ba58c26 100644
--- a/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesProvs.kt
+++ b/src/main/kotlin/org/domaindrivenarchitecture/provs/desktop/infrastructure/BinariesProvs.kt
@@ -5,7 +5,7 @@ import org.domaindrivenarchitecture.provs.framework.ubuntu.filesystem.base.creat
 import org.domaindrivenarchitecture.provs.framework.ubuntu.web.base.downloadFromURL
 
 
-fun Prov.installBinariesProvs() = task {
+fun Prov.installBinariesProvs(reprovision: Boolean = false) = task {
     // check for latest stable release on: https://gitlab.com/domaindrivenarchitecture/provs/-/releases
     // release 0.9.8
     val jobId = "2137287031"
@@ -15,22 +15,23 @@ fun Prov.installBinariesProvs() = task {
 
     createDirs(installationPath, sudo = true)
 
-    downloadFromURL(
-        "https://gitlab.com/domaindrivenarchitecture/provs/-/jobs/$jobId/artifacts/raw/build/libs/provs-server.jar",
-        path = installationPath,
-        filename = "provs-server.jar",
-        sha256sum = provsServerSha256sum,
-        sudo = true
-    )
-
     downloadFromURL(
         "https://gitlab.com/domaindrivenarchitecture/provs/-/jobs/$jobId/artifacts/raw/build/libs/provs-desktop.jar",
         path = installationPath,
         filename = "provs-desktop.jar",
         sha256sum = provsDesktopSha256sum,
-        sudo = true
+        sudo = true,
+        overwrite = reprovision
     )
+    cmd("chmod 755 /usr/local/bin/provs-desktop.jar", sudo = true)
 
+    downloadFromURL(
+        "https://gitlab.com/domaindrivenarchitecture/provs/-/jobs/$jobId/artifacts/raw/build/libs/provs-server.jar",
+        path = installationPath,
+        filename = "provs-server.jar",
+        sha256sum = provsServerSha256sum,
+        sudo = true,
+        overwrite = reprovision
+    )
     cmd("chmod 755 /usr/local/bin/provs-server.jar" , sudo = true)
-    cmd("chmod 755  /usr/local/bin/provs-desktop.jar", sudo = true)
 }