diff --git a/aivika-gpss.cabal b/aivika-gpss.cabal
--- a/aivika-gpss.cabal
+++ b/aivika-gpss.cabal
@@ -1,5 +1,5 @@
 name:            aivika-gpss
-version:         0.6.1
+version:         0.6.2
 synopsis:        GPSS-like DSL for Aivika
 description:
     This package allows defining simulation models in terms of a GPSS-like
@@ -44,7 +44,7 @@
 author:          David Sorokin
 maintainer:      David Sorokin <david.sorokin@gmail.com>
 homepage:        http://www.aivikasoft.com
-cabal-version:   >= 1.6
+cabal-version:   >= 1.10
 build-type:      Simple
 tested-with:     GHC == 8.0.1
 
@@ -145,17 +145,19 @@
                      containers >= 0.4.0.0,
                      hashable >= 1.2.0.0,
                      unordered-containers >= 0.1.0.0,
-                     aivika >= 5.3,
-                     aivika-transformers >= 5.3
+                     aivika >= 5.9.1,
+                     aivika-transformers >= 5.9.1
 
-    extensions:      MultiParamTypeClasses,
-                     TypeFamilies,
-                     FlexibleInstances,
-                     FlexibleContexts,
-                     KindSignatures
+    other-extensions:   MultiParamTypeClasses,
+                        TypeFamilies,
+                        FlexibleInstances,
+                        FlexibleContexts,
+                        KindSignatures
                      
     ghc-options:     -O2
     
+    default-language:   Haskell2010
+
 source-repository head
 
     type:     git