diff --git a/cardano-cli/src/Cardano/CLI/Read.hs b/cardano-cli/src/Cardano/CLI/Read.hs
index 499fa84616..ab7a084f0f 100644
--- a/cardano-cli/src/Cardano/CLI/Read.hs
+++ b/cardano-cli/src/Cardano/CLI/Read.hs
@@ -137,8 +137,9 @@ import           Data.Text (Text)
 import qualified Data.Text as Text
 import qualified Data.Text.Encoding as Text
 import qualified Data.Text.Encoding.Error as Text
+import qualified Data.Text.IO as Text
 import           Data.Word
-import           GHC.IO.Handle (hClose, hIsSeekable,)
+import           GHC.IO.Handle (hClose, hIsSeekable)
 import           GHC.IO.Handle.FD (openFileBlocking)
 import qualified Options.Applicative as Opt
 import           System.IO (IOMode (ReadMode))
@@ -803,7 +804,7 @@ readVoteHashSource = \case
     VoteHashSourceHash h -> return h
     VoteHashSourceText c -> return $ Ledger.hashAnchorData $ Ledger.AnchorData $ Text.encodeUtf8 c
     VoteHashSourceFile fp -> do
-      cBs <- firstExceptT VoteErrorFile . newExceptT $ readByteStringFile fp 
+      cBs <- firstExceptT VoteErrorFile . newExceptT $ readByteStringFile fp
       _utf8EncodedText <- firstExceptT VoteErrorTextNotUnicode . hoistEither $ Text.decodeUtf8' cBs
       return $ Ledger.hashAnchorData $ Ledger.AnchorData cBs
 
@@ -858,9 +859,8 @@ proposalHashSourceToHash :: ()
 proposalHashSourceToHash proposalHashSource = do
   case proposalHashSource of
     ProposalHashSourceFile fp  -> do
-      cBs <- liftIO $ BS.readFile $ unFile fp
-      _utf8EncodedText <- firstExceptT ProposalNotUnicodeError . hoistEither $ Text.decodeUtf8' cBs
-      pure $ Ledger.hashAnchorData $ Ledger.AnchorData cBs
+      text <- liftIO $ Text.readFile $ unFile fp
+      pure $ Ledger.hashAnchorData $ Ledger.AnchorData $ Text.encodeUtf8 text
 
     ProposalHashSourceText c -> do
       pure $ Ledger.hashAnchorData $ Ledger.AnchorData $ Text.encodeUtf8 c
diff --git a/cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/Committee.hs b/cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/Committee.hs
index 722517b6ae..4378379bf3 100644
--- a/cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/Committee.hs
+++ b/cardano-cli/test/cardano-cli-golden/Test/Golden/Governance/Committee.hs
@@ -13,6 +13,7 @@ import           Hedgehog (Property)
 import qualified Hedgehog as H
 import qualified Hedgehog.Extras.Test.Base as H
 import qualified Hedgehog.Extras.Test.File as H
+import qualified Hedgehog.Extras.Test.Golden as H
 
 hprop_golden_governanceCommitteeKeyGenCold :: Property
 hprop_golden_governanceCommitteeKeyGenCold =
@@ -145,3 +146,31 @@ hprop_golden_governanceCommitteeCreateColdKeyResignationCertificate =
 
     H.assertFileOccurences 1 "CertificateShelley" certFile
     H.assertFileOccurences 1 "Constitutional Committee Cold Key Resignation Certificate" certFile
+
+hprop_golden_governanceUpdateCommittee :: Property
+hprop_golden_governanceUpdateCommittee =
+  propertyOnce . H.moduleWorkspace "tmp" $ \tempDir -> do
+    stakeVkey <- noteInputFile "test/cardano-cli-golden/files/input/governance/stake-address.vkey"
+    ccProposal <- noteInputFile "test/cardano-cli-golden/files/input/governance/committee/cc-proposal.txt"
+    coldCCVkey1 <- noteInputFile "test/cardano-cli-golden/files/input/governance/committee/cc-cold1.vkey"
+    coldCCVkey2 <- noteInputFile "test/cardano-cli-golden/files/input/governance/committee/cc-cold2.vkey"
+
+    outFile <- H.noteTempFile tempDir "answer-file.json"
+
+    goldenAnswerFile <- H.note "test/cardano-cli-golden/files/golden/governance/committee/update-committee-answer.json"
+
+    void $ execCardanoCLI
+      [ "conway", "governance", "action", "update-committee"
+      , "--testnet", "--governance-action-deposit", "0"
+      , "--stake-verification-key-file", stakeVkey
+      , "--proposal-anchor-url", "http://dummy"
+      , "--proposal-anchor-metadata-file", ccProposal
+      , "--add-cc-cold-verification-key-file", coldCCVkey1
+      , "--epoch", "202"
+      , "--add-cc-cold-verification-key-file", coldCCVkey2
+      , "--epoch", "252"
+      , "--quorum", "51/100"
+      , "--out-file", outFile
+      ]
+
+    H.diffFileVsGoldenFile outFile goldenAnswerFile
diff --git a/cardano-cli/test/cardano-cli-golden/files/golden/governance/committee/update-committee-answer.json b/cardano-cli/test/cardano-cli-golden/files/golden/governance/committee/update-committee-answer.json
new file mode 100644
index 0000000000..358e5c675f
--- /dev/null
+++ b/cardano-cli/test/cardano-cli-golden/files/golden/governance/committee/update-committee-answer.json
@@ -0,0 +1,5 @@
+{
+    "type": "Governance proposal",
+    "description": "",
+    "cborHex": "8400581de08f4a3466a404c11eb410313015b88e447d81b60089e25f611600e6058504f680a28200581cc0f2510d2353ee41a508b3c700c807e52697f2813fb014e3bc6982cd18ca8200581cf5ba9ae54a389cf97c54b981513d780877fc888579148044a8e7e7f218fcd81e8218331864826c687474703a2f2f64756d6d795820c9decb4498c4924d4f9804b6fa3425bab8f669f6452cb61f295114c906f3093e"
+}
diff --git a/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold1.vkey b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold1.vkey
new file mode 100644
index 0000000000..8832ca53bc
--- /dev/null
+++ b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold1.vkey
@@ -0,0 +1,5 @@
+{
+    "type": "ConstitutionalCommitteeColdVerificationKey_ed25519",
+    "description": "Constitutional Committee Cold Verification Key",
+    "cborHex": "5820b18096da5d51818f8890d6a7c9c7b21d555e03e347f4ec07be09e0ddef96a984"
+}
diff --git a/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold2.vkey b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold2.vkey
new file mode 100644
index 0000000000..55c9ae48c2
--- /dev/null
+++ b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-cold2.vkey
@@ -0,0 +1,5 @@
+{
+    "type": "ConstitutionalCommitteeColdVerificationKey_ed25519",
+    "description": "Constitutional Committee Cold Verification Key",
+    "cborHex": "58209f70f7288b9db552db64e42e1442265515ff544cf95beb514d2fcf6c9d9dac6a"
+}
diff --git a/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-proposal.txt b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-proposal.txt
new file mode 100644
index 0000000000..9158bce2b4
--- /dev/null
+++ b/cardano-cli/test/cardano-cli-golden/files/input/governance/committee/cc-proposal.txt
@@ -0,0 +1,2 @@
+WE, THE PEOPLE of Barataria, in order to maintain peace and harmony among us, establish this Constitution for our 
+precious Insula of Barataria: Article 1. The person who waters wine or changes the label should lose his life for it.
\ No newline at end of file