diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9453bd41..3b049ac2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
           # Note: Specifying the version of valgrind and wasm-pack is not supported.
           # cargo-watch is supported by cargo-binstall (through quickinstall)
           - cargo-hack,cargo-llvm-cov,cargo-minimal-versions,parse-changelog,cross,nextest,shellcheck,shfmt,valgrind,wasm-pack,wasmtime,mdbook,cargo-watch
-          - cargo-hack@0.5.15,cargo-llvm-cov@0.4.11,cargo-minimal-versions@0.1.5,parse-changelog@0.4.9,cross@0.2.4,nextest@0.9.11,shellcheck@0.8.0,shfmt@3.5.1,wasmtime@0.38.1,mdbook@0.4.20,cargo-watch@8.1.1
+          - cargo-hack@0.5.15,cargo-llvm-cov@0.4.11,cargo-minimal-versions@0.1.5,parse-changelog@0.4.9,cross@0.2.4,nextest@0.9.11,shellcheck@0.8.0,shfmt@3.5.1,wasmtime@0.39.0,mdbook@0.4.20,cargo-watch@8.1.1
           # Nextest supports basic version ranges as well
           - nextest@0.9
         include:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ccc9462..4cde0a4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,8 @@ Note: In this file, do not use the hard wrap in the middle of a sentence for com
 
 ## [Unreleased]
 
+- Update `wasmtime@latest` to 0.39.0.
+
 ## [1.5.7] - 2022-07-20
 
 - Update `cargo-llvm-cov@latest` to 0.4.11.
diff --git a/main.sh b/main.sh
index b535f453..464cc054 100755
--- a/main.sh
+++ b/main.sh
@@ -251,7 +251,7 @@ for tool in "${tools[@]}"; do
             ;;
         wasmtime)
             # https://github.com/bytecodealliance/wasmtime/releases
-            latest_version="0.38.1"
+            latest_version="0.39.0"
             repo="bytecodealliance/wasmtime"
             case "${OSTYPE}" in
                 linux*) target="x86_64-linux" ;;