diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@
 
 ## [Unreleased]
 
+## [1.0.2.0] - 2022-05-12
+### Added
+- New field `derivationEnv` of `Derivation`.
+
 ## [1.0.1.0] - 2022-02-09
 ### Added
 - New function `buildFull` to get back the nix graph of Derivations instead of FilePaths.
diff --git a/nix-graph.cabal b/nix-graph.cabal
--- a/nix-graph.cabal
+++ b/nix-graph.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.2
 
 name:        nix-graph
-version:     1.0.1.0
+version:     1.0.2.0
 synopsis:    Reify the Nix build graph into a Haskell graph data structure
 description: Reify the Nix build graph into a Haskell graph data structure
 category:    Nix, Graphs
@@ -52,6 +52,7 @@
     , text
     , ttrie            >= 0.1.2  && < 0.2
     , unliftio         >= 0.2.6  && < 0.3
+    , unordered-containers
   exposed-modules:
     Nix.Graph
     Nix.Graph.Internal
diff --git a/src/Nix/Graph/Internal.hs b/src/Nix/Graph/Internal.hs
--- a/src/Nix/Graph/Internal.hs
+++ b/src/Nix/Graph/Internal.hs
@@ -16,7 +16,7 @@
 import Control.Monad (unless, when)
 import Control.Monad.IO.Class (MonadIO (..))
 import Data.Attoparsec.Text ((<?>))
-import Data.Hashable (Hashable)
+import Data.Hashable (Hashable (..))
 import Data.Set (Set)
 import Data.Text (Text)
 import GHC.Generics (Generic)
@@ -27,6 +27,7 @@
 import qualified Control.Concurrent.STM.Map as STM.Map
 import qualified Control.Concurrent.STM.TSem as TSem
 import qualified Data.Attoparsec.Text as Attoparsec
+import qualified Data.HashMap.Strict as HashMap
 import qualified Data.Map as Map
 import qualified Data.Set as Set
 import qualified Data.Text as Text
@@ -52,6 +53,7 @@
   , derivationSystem :: Text
   , derivationInputDrvs :: [FilePath]
   , derivationBuilt :: Bool
+  , derivationEnv :: HashMap.HashMap Text Text
   }
   deriving stock (Eq, Ord, Generic)
   deriving anyclass (Hashable)
@@ -79,7 +81,16 @@
 
   let derivationSystem = Nix.Derivation.platform drv
 
-  pure Derivation{derivationPath, derivationBuilt, derivationSystem, derivationInputDrvs}
+  let derivationEnv = HashMap.fromList (Map.toList (Nix.Derivation.env drv))
+
+  pure
+    Derivation
+      { derivationPath
+      , derivationBuilt
+      , derivationSystem
+      , derivationInputDrvs
+      , derivationEnv
+      }
 
 buildAdjacencyMap ::
   MonadIO m =>