diff --git a/ShadowLibrary/Core.hs b/ShadowLibrary/Core.hs
index 678df33..84c7850 100644
--- a/ShadowLibrary/Core.hs
+++ b/ShadowLibrary/Core.hs
@@ -33,7 +33,7 @@ import Data.Tree.NTree.TypeDefs
 import Data.Maybe
 import Control.Monad.Trans
 import Text.XML.HXT.XPath
--- import Text.XML.HXT.Curl
+import Text.XML.HXT.Curl
 import Text.XML.HXT.HTTP
 
 import Text.Regex.TDFA
@@ -64,8 +64,8 @@ downloadDocument = readFromDocument [withParseHTML yes,
                                      withEncodingErrors no,
                                      withPreserveComment yes,
                                      withStrictInput yes,
-                                     withHTTP []
---                                     withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
+--                                     withHTTP []
+                                     withCurl [("curl--user-agent","AMU Digital Libraries Indexing Agent")]
                                     ]
 
 downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
@@ -73,13 +73,13 @@ downloadDocumentWithEncoding enc = readFromDocument [withParseHTML yes,
                                                      withEncodingErrors no,
                                                      withPreserveComment yes,
                                                      withInputEncoding enc,
-					             withHTTP []]		
---                                                     withCurl []]
+--                       		             withHTTP []]
+                                                     withCurl []]
 
 downloadXmlDocument = readFromDocument [withWarnings no,
                                         withEncodingErrors no,
-					withHTTP []]
---                                        withCurl [] ]
+--					withHTTP []]
+                                        withCurl [] ]
 
 
 data ShadowLibrary = ShadowLibrary { logoUrl :: Maybe String,
diff --git a/app/almanachmuszyny.hs b/app/almanachmuszyny.hs
index ebc4f5c..234f1a0 100644
--- a/app/almanachmuszyny.hs
+++ b/app/almanachmuszyny.hs
@@ -4,7 +4,7 @@ import ShadowLibrary.Core
 
 import Text.XML.HXT.Core
 import Text.XML.HXT.XPath
--- import Text.XML.HXT.Curl
+--import Text.XML.HXT.Curl
 import Data.List
 import Data.List.Utils (replace)
 
diff --git a/shadow-library.cabal b/shadow-library.cabal
index cd77195..3e1bd4e 100644
--- a/shadow-library.cabal
+++ b/shadow-library.cabal
@@ -20,6 +20,7 @@ library
                      , HTTP
                      , hxt
                      , hxt-http
+                     , hxt-curl
                      , hxt-xpath
                      , MissingH
                      , monad-logger
@@ -54,6 +55,7 @@ executable almanachmuszyny
    build-depends:       base
                       , hxt
                       , hxt-xpath
+                      , hxt-curl
                       , MissingH
                       , regex-posix
                       , shadow-library
diff --git a/stack.yaml.lock b/stack.yaml.lock
new file mode 100644
index 0000000..ccbe03f
--- /dev/null
+++ b/stack.yaml.lock
@@ -0,0 +1,19 @@
+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+snapshots:
+- original: lts-11.9
+  completed:
+    sha256: 42f472dbf06482da1b3319241f3e3b3593a45bd7d4f537d2789f21386b9b2ad3
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/11/9.yaml
+    size: 507596
+packages:
+- original:
+    hackage: hxt-xpath-9.1.2.2
+  completed:
+    pantry-tree:
+      sha256: aee2f75974e868ff429b8ff349a29667536c60397098f5dfedc968d1951511bb
+      size: 2225
+    hackage: hxt-xpath-9.1.2.2@sha256:9cd590ae93a04573db8f90fa4094625ebd97dded45da7667c577ce6b38a42900,1999