diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 63cb8d0..5f4df1f 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -303,10 +303,10 @@ jobs:
       - name: Check out repository code
         uses: actions/checkout@v2
 
-      - name: Install Inno setup 6.3.3
+      - name: Install Inno setup 6.4.0
         run: |
           Invoke-WebRequest -Uri "https://jrsoftware.org/download.php/is.exe" -OutFile innosetup.exe
-          if ((Get-FileHash innosetup.exe).Hash -eq "0bcb2a409dea17e305a27a6b09555cabe600e984f88570ab72575cd7e93c95e6") {
+          if ((Get-FileHash innosetup.exe).Hash -eq "a360db165cfb1d42d195b020700181e7eaf5db45c1249a24edb51c3c33e9d659") {
             Start-Process .\innosetup.exe -ArgumentList "/VERYSILENT /LOG=innosetup.log" -NoNewWindow -Wait
             Get-Content innosetup.log
           } else {