diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for stack2cabal
 
+## 1.0.13 -- 2022-03-06
+
+- Support github field in extra-deps wrt [#39](https://github.com/hasufell/stack2cabal/pull/39), by Fumiaki Kinoshita
+
 ## 1.0.12 -- 2020-10-23
 
 - Use multiple subdirs per source-repository wrt #29
diff --git a/lib/StackageToHackage/Hackage.hs b/lib/StackageToHackage/Hackage.hs
--- a/lib/StackageToHackage/Hackage.hs
+++ b/lib/StackageToHackage/Hackage.hs
@@ -95,7 +95,7 @@
 printProject pinGHC indexDate (Project (Ghc ghc) pkgs srcs ghcOpts) hack = do
     ghcOpts' <- printGhcOpts ghcOpts
     pure $ T.concat
-        $ ["-- Generated by stackage-to-hackage\n\n"]
+        $ ["-- Generated by stack2cabal\n\n"]
         <> withHackageIndex
         <> withCompiler
         <> [ "packages:\n    ", packages, "\n\n", sources
diff --git a/lib/StackageToHackage/Stackage/YAML.hs b/lib/StackageToHackage/Stackage/YAML.hs
--- a/lib/StackageToHackage/Stackage/YAML.hs
+++ b/lib/StackageToHackage/Stackage/YAML.hs
@@ -73,9 +73,10 @@
 
 instance FromYAML Git where
   parseYAML = withMap "Git" $ \m -> Git
-      <$> m .: "git"
+      <$> (m .: "git" <|> github m)
       <*> m .: "commit"
       <*> m .:? "subdirs" .!= []
+    where github m = (\x -> "https://github.com/" <> x <> ".git") <$> (m .: "github")
 
 instance FromYAML ResolverRef where
   parseYAML = withStr "ResolverRef" $ \s ->
diff --git a/stack2cabal.cabal b/stack2cabal.cabal
--- a/stack2cabal.cabal
+++ b/stack2cabal.cabal
@@ -1,6 +1,6 @@
 cabal-version:      2.2
 name:               stack2cabal
-version:            1.0.12
+version:            1.0.13
 synopsis:
   Convert stack projects to cabal.project + cabal.project.freeze
 
@@ -10,7 +10,7 @@
 maintainer:         Julian Ospald
 copyright:          2018 Tseen She, 2020 Julian Ospald
 bug-reports:        https://github.com/hasufell/stack2cabal/issues
-tested-with:        GHC ^>=8.6.5 || ^>=8.8.4 || ^>=8.10.2
+tested-with:        GHC ^>=8.8.4 || ^>=8.10.7
 category:           Building
 description:
   Convert @stack.yaml@ \/ @package.yaml@ to @cabal.project@ \/ @cabal.project.freeze@\/ @*.cabal@.
@@ -32,9 +32,9 @@
 
 common deps
   build-depends:
-    , base                  >=4.10     && <5.0
+    , base                  >=4.13     && <5.0
     , bytestring
-    , Cabal                 >=3.0      && <3.4
+    , Cabal                 >=3.0      && <=3.4
     , containers
     , directory
     , exceptions            ^>=0.10.4
@@ -43,11 +43,11 @@
     , filepattern           ^>=0.1.2
     , fuzzy-dates           ^>=0.1.1.2
     , hourglass             ^>=0.2.12
-    , hpack                 ==0.34.2
+    , hpack                 ==0.34.5
     , HsYAML                ^>=0.2
     , http-client           ^>=0.6.4.1
     , http-client-tls       ^>=0.3.5.3
-    , optparse-applicative  ^>=0.15.1.0
+    , optparse-applicative  >=0.15.1.0 && < 0.17
     , process               >=1.6.9.0
     , safe                  ^>=0.3.19
     , temporary             ^>=1.3