diff --git a/CHANGELOG.md b/CHANGELOG.md
index 64d70370f..c9fb64e53 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,9 @@
 
 ## Unreleased: mitmproxy next
 
-* Hard exit when mitmproxy cannot write logs, fixes endless loop when parent process exits
+* Temporarily downgrade PyInstaller to fix standalone Linux binaries.
+  ([#5699](https://github.com/mitmproxy/mitmproxy/issues/5699), @mhils))
+* Hard exit when mitmproxy cannot write logs, fixes endless loop when parent process exits.
   ([#4669](https://github.com/mitmproxy/mitmproxy/issues/4669), @Prinzhorn))
 
 
diff --git a/setup.py b/setup.py
index 3dd603556..eab22dead 100644
--- a/setup.py
+++ b/setup.py
@@ -108,7 +108,7 @@ setup(
             "hypothesis>=5.8,<7",
             "parver>=0.1,<2.0",
             "pdoc>=4.0.0",
-            "pyinstaller==5.6.1",
+            "pyinstaller==5.5",
             "pytest-asyncio>=0.17,<0.21",
             "pytest-cov>=2.7.1,<4.1",
             "pytest-timeout>=1.3.3,<2.2",