diff --git a/base64-0.4.2.4.cabal b/base64-0.4.2.4.cabal
new file mode 100644
index 0000000..e8c2ab7
--- /dev/null
+++ b/base64-0.4.2.4.cabal
@@ -0,0 +1,101 @@
+cabal-version:   2.0
+name:            base64
+version:         0.4.2.4
+x-revision: 3
+synopsis:        A modern RFC 4648-compliant Base64 library
+description:
+  RFC 4648-compliant Base64 with an eye towards performance and modernity (additional support for RFC 7049 standards)
+
+homepage:        https://github.com/emilypi/base64
+bug-reports:     https://github.com/emilypi/base64/issues
+license:         BSD3
+license-file:    LICENSE
+author:          Emily Pillmore
+maintainer:      emilypi@cohomolo.gy
+copyright:       (c) 2019-2022 Emily Pillmore
+category:        Data
+build-type:      Simple
+extra-doc-files:
+  CHANGELOG.md
+  README.md
+
+tested-with:     GHC ==8.10.7 || ==9.0.2 || ==9.2.4 || ==9.4.1 || ==9.6.1
+
+source-repository head
+  type:     git
+  location: https://github.com/emilypi/base64.git
+
+library
+  exposed-modules:
+    Data.ByteString.Base64
+    Data.ByteString.Base64.URL
+    Data.ByteString.Lazy.Base64
+    Data.ByteString.Lazy.Base64.URL
+    Data.ByteString.Short.Base64
+    Data.ByteString.Short.Base64.URL
+    Data.Text.Encoding.Base64
+    Data.Text.Encoding.Base64.Error
+    Data.Text.Encoding.Base64.URL
+    Data.Text.Lazy.Encoding.Base64
+    Data.Text.Lazy.Encoding.Base64.URL
+    Data.Text.Short.Encoding.Base64
+    Data.Text.Short.Encoding.Base64.URL
+
+  other-modules:
+    Data.ByteString.Base64.Internal
+    Data.ByteString.Base64.Internal.Head
+    Data.ByteString.Base64.Internal.Tables
+    Data.ByteString.Base64.Internal.Tail
+    Data.ByteString.Base64.Internal.Utils
+    Data.ByteString.Base64.Internal.W16.Loop
+    Data.ByteString.Base64.Internal.W32.Loop
+    Data.ByteString.Base64.Internal.W64.Loop
+
+  build-depends:
+      base           >=4.14     && <4.19
+    , bytestring     >=0.10     && <0.12
+    , deepseq        >=1.4.3.0  && <1.5
+    , text           >=1.2 && <1.3 || >=2.0 && <2.1
+    , text-short     ^>=0.1
+
+  hs-source-dirs:   src
+  default-language: Haskell2010
+  ghc-options:      -Wall
+
+test-suite tasty
+  default-language: Haskell2010
+  type:             exitcode-stdio-1.0
+  hs-source-dirs:   test
+  other-modules:    Internal
+  main-is:          Main.hs
+  build-depends:
+      base               >=4.14 && <4.19
+    , base64
+    , base64-bytestring
+    , bytestring
+    , QuickCheck
+    , random-bytestring
+    , tasty
+    , tasty-hunit
+    , tasty-quickcheck
+    , text
+    , text-short
+
+  ghc-options:      -Wall -threaded -with-rtsopts=-N
+
+benchmark bench
+  default-language: Haskell2010
+  type:             exitcode-stdio-1.0
+  hs-source-dirs:   benchmarks
+  main-is:          Base64Bench.hs
+  build-depends:
+      base               >=4.14 && <4.19
+    , base64
+    , base64-bytestring
+    , bytestring
+    , criterion
+    , deepseq
+    , random-bytestring
+    , text
+
+  ghc-options:      -Wall -rtsopts
diff --git a/pandoc.spec b/pandoc.spec
index f160578..0146d08 100644
--- a/pandoc.spec
+++ b/pandoc.spec
@@ -52,6 +52,7 @@ Source14:       https://hackage.haskell.org/package/%{lpeg}/%{lpeg}.tar.gz
 Source15:       https://hackage.haskell.org/package/%{pandocluamarshal}/%{pandocluamarshal}.tar.gz
 Source16:       https://hackage.haskell.org/package/%{hslualist}/%{hslualist}.tar.gz
 # End cabal-rpm sources
+Source17:       https://hackage.haskell.org/package/%{base64}/base64.cabal#/%{base64}.cabal
 Patch0:         pandoc-version-disable-hslua.patch
 
 # Begin cabal-rpm deps:
@@ -408,6 +409,7 @@ This package provides the Haskell %{name} profiling library.
 %ifarch ppc64le
 %patch -P0 -p1 -b .orig
 %endif
+cp -p %{SOURCE17} %{base64}/base64.cabal
 
 
 %build