diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 59e7810d7c..01fed60125 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -78,13 +78,13 @@ jobs:
             rust: 1.68.0
             python: false # Python bindings compilation on Windows is not supported.
 
-          # Minimum Supported Rust Version = 1.63.0
+          # Minimum Supported Rust Version = 1.64.0
           #
           # Minimum Supported Python Version = 3.7
           # This is the minimum version for which manylinux Python wheels are
           # built.
           - os: ubuntu-latest
-            rust: 1.63.0
+            rust: 1.64.0
             python: 3.7
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ace9fd0447..5538e67672 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - Pick up system's light/dark mode in generated message HTML #4150
 - Support non-persistent configuration with DELTACHAT_* env
 - Print deltachat-repl errors with causes. #4166
+- Increase MSRV to 1.64. #4167
 
 ### Fixes
 - Fix segmentation fault if `dc_context_unref()` is called during
diff --git a/Cargo.toml b/Cargo.toml
index 506fb0b5e7..b141b410fa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "deltachat"
 version = "1.111.0"
 edition = "2021"
 license = "MPL-2.0"
-rust-version = "1.63"
+rust-version = "1.64"
 
 [profile.dev]
 debug = 0