diff --git a/.github/workflows/build-linux.yml b/.github/workflows/build-linux.yml
index a8b0d75..e8d0cd0 100644
--- a/.github/workflows/build-linux.yml
+++ b/.github/workflows/build-linux.yml
@@ -41,6 +41,12 @@ jobs:
         CGO_ENABLED: 1
         GOAMD64: v1
 
+    - name: Compress with upx
+      run: |
+        wget -O upx.tar.xz https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-amd64_linux.tar.xz
+        tar -xf upx.tar.xz
+        upx-5.0.2-amd64_linux/upx --lzma src/Picocrypt
+
     - name: Package as .deb
       run: |
         wget https://github.com/user-attachments/files/16136712/Picocrypt.zip
diff --git a/.github/workflows/build-windows.yml b/.github/workflows/build-windows.yml
index 5b491c8..bf28e65 100644
--- a/.github/workflows/build-windows.yml
+++ b/.github/workflows/build-windows.yml
@@ -60,9 +60,9 @@ jobs:
     - name: Compress with upx
       shell: pwsh
       run: |
-        Invoke-WebRequest -OutFile upx.zip https://github.com/user-attachments/files/15894908/upx-4.2.4-win64.zip
+        Invoke-WebRequest -OutFile upx.zip https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-win64.zip
         Expand-Archive -DestinationPath upx upx.zip
-        upx/upx-4.2.4-win64/upx.exe --lzma --brute -o src/Picocrypt.exe src/5.exe
+        upx/upx-5.0.2-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
 
     - name: Upload artifact
       uses: actions/upload-artifact@v4
diff --git a/.github/workflows/pr-test-build-linux.yml b/.github/workflows/pr-test-build-linux.yml
index 2542dcd..653830b 100644
--- a/.github/workflows/pr-test-build-linux.yml
+++ b/.github/workflows/pr-test-build-linux.yml
@@ -38,6 +38,12 @@ jobs:
         CGO_ENABLED: 1
         GOAMD64: v1
 
+    - name: Compress with upx
+      run: |
+        wget -O upx.tar.xz https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-amd64_linux.tar.xz
+        tar -xf upx.tar.xz
+        upx-5.0.2-amd64_linux/upx --lzma src/Picocrypt
+
     - name: Package as .deb
       run: |
         wget https://github.com/user-attachments/files/16136712/Picocrypt.zip
diff --git a/.github/workflows/pr-test-build-windows.yml b/.github/workflows/pr-test-build-windows.yml
index 44bb4da..e1fb58c 100644
--- a/.github/workflows/pr-test-build-windows.yml
+++ b/.github/workflows/pr-test-build-windows.yml
@@ -57,9 +57,9 @@ jobs:
     - name: Compress with upx
       shell: pwsh
       run: |
-        Invoke-WebRequest -OutFile upx.zip https://github.com/user-attachments/files/15894908/upx-4.2.4-win64.zip
+        Invoke-WebRequest -OutFile upx.zip https://github.com/upx/upx/releases/download/v5.0.2/upx-5.0.2-win64.zip
         Expand-Archive -DestinationPath upx upx.zip
-        upx/upx-4.2.4-win64/upx.exe --lzma --brute -o src/Picocrypt.exe src/5.exe
+        upx/upx-5.0.2-win64/upx.exe --lzma -o src/Picocrypt.exe src/5.exe
 
     - name: Upload artifact
       uses: actions/upload-artifact@v4
diff --git a/Changelog.md b/Changelog.md
index 60b5fe0..f1a7c10 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -2,6 +2,7 @@
 <ul>
 	<li>✓ Update macOS icon to fit better</li>
 	<li>✓ Added support for Cyrillic characters (https://github.com/Picocrypt/giu/pull/1), thanks <a href="https://github.com/Retengart">@Retengart</a></li>
+	<li>✓ upx Linux binary in addition to Windows, update upx version for Windows</li>
 	<li>Update Flatpak runtime from 24.08 to 25.08</li>
 	<li>Fix Picocrypt not running on macOS 26 (and remember to update Homebrew after release)</li>
 </ul>
diff --git a/src/go.mod b/src/go.mod
index dd0bd76..033f680 100644
--- a/src/go.mod
+++ b/src/go.mod
@@ -4,7 +4,7 @@ go 1.24.2
 
 require (
 	github.com/Picocrypt/dialog v0.0.0-20250412233924-78f7b909315b
-	github.com/Picocrypt/giu v0.0.0-20250412235908-fe90a482e6f2
+	github.com/Picocrypt/giu v0.0.0-20250801020750-ec85cd24c933
 	github.com/Picocrypt/imgui-go v0.0.0-20250412235405-d86b230f5fbb
 	github.com/Picocrypt/infectious v0.0.0-20250412183341-9f88c6307b39
 	github.com/Picocrypt/serpent v0.0.0-20240830233833-9ad6ab254fd7
diff --git a/src/go.sum b/src/go.sum
index bda8a84..b490245 100644
--- a/src/go.sum
+++ b/src/go.sum
@@ -1,7 +1,7 @@
 github.com/Picocrypt/dialog v0.0.0-20250412233924-78f7b909315b h1:k5YGEx61N6K8l2l6AQ1u5W2aR+47sVZWFyqXS/f5lIA=
 github.com/Picocrypt/dialog v0.0.0-20250412233924-78f7b909315b/go.mod h1:OyaP0Tz19qL3RAGq5Ntues+WVrIbHh5MrfqoA/qhqeg=
-github.com/Picocrypt/giu v0.0.0-20250412235908-fe90a482e6f2 h1:SPR2efZTpZJON/2mNifLi68Gl9Epxh/1nXb3kGGHCcg=
-github.com/Picocrypt/giu v0.0.0-20250412235908-fe90a482e6f2/go.mod h1:jd6AonK0ZI02R7GqLWb4gWJz/A2ClF36Y4fFMR8Lzbk=
+github.com/Picocrypt/giu v0.0.0-20250801020750-ec85cd24c933 h1:4K9zEOVimmirylJ2ZFSNdJeAjLSCrkgWuCtPDlWw+wo=
+github.com/Picocrypt/giu v0.0.0-20250801020750-ec85cd24c933/go.mod h1:jd6AonK0ZI02R7GqLWb4gWJz/A2ClF36Y4fFMR8Lzbk=
 github.com/Picocrypt/gl v0.0.0-20250412234430-767b58dbf936 h1:6MChjQ4AZC2ISBjbgZU/z6tSUxYP50NkRvAu0T2kjlY=
 github.com/Picocrypt/gl v0.0.0-20250412234430-767b58dbf936/go.mod h1:pMdf3io/y3I+zYZ6/xFb3MlI2AgL38enDDIKuR0n2qA=
 github.com/Picocrypt/glfw/v3.3/glfw v0.0.0-20250412234750-7b96bfdb8dd8 h1:i8wXJhSYIJTXb6sqBS6JZW7QosI9u8Ysy1BHZCTuZEc=