diff --git a/.github/workflows/windows-build.yml b/.github/workflows/windows-build.yml
index c2a5067d6..d6a41ef37 100644
--- a/.github/workflows/windows-build.yml
+++ b/.github/workflows/windows-build.yml
@@ -22,6 +22,7 @@ jobs:
           mingw-w64-x86_64-toolchain
           mingw-w64-x86_64-autotools
           mingw-w64-x86_64-tools-git
+          mingw-w64-x86_64-libdeflate
     - name: Compile htslib
       shell: msys2 {0}
       run: |