diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e36ee3b3b..b619f1f58 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -52,7 +52,7 @@ jobs:
           - os: ubuntu-20.04
             tool: cargo-hack@0.5,cargo-llvm-cov@0.5,cargo-minimal-versions@0.1,cargo-no-dev-deps@0.1,parse-changelog@0.5,cargo-udeps@0.1,cargo-valgrind@2.1,cargo-deny@0.13,cross@0.2,dprint@0.34,just@1.9,nextest@0.9,protoc@3.21,shellcheck@0.9,shfmt@3.5,wasm-pack@0.10,wasmtime@6.0,mdbook@0.4,mdbook-linkcheck@0.7,cargo-watch@8.1,grcov@0.8,watchexec-cli@1.20,cargo-tarpaulin@0.25,zola@0.16
           - os: ubuntu-20.04
-            tool: cargo-valgrind@2,just@1,protoc@3,shfmt@3,wasmtime@7,cargo-watch@8,watchexec-cli@1
+            tool: cargo-valgrind@2, just@1, protoc@3, shfmt@3 ,wasmtime@7,cargo-watch@8,watchexec-cli@1
           - os: macos-11
             tool: cargo-hack,cargo-llvm-cov,cargo-minimal-versions,cargo-no-dev-deps,parse-changelog,cargo-udeps,cargo-valgrind,cargo-deny,cross,dprint,just,nextest,protoc,shellcheck,shfmt,wasm-pack,wasmtime,mdbook,mdbook-linkcheck,cargo-watch,grcov,watchexec-cli,cargo-tarpaulin,zola
           - os: windows-2019
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d991d78fc..fb27dc1bf 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]
 
+- Trim whitespace from tool names. ([#115](https://github.com/taiki-e/install-action/pull/115))
+
 ## [2.7.2] - 2023-04-28
 
 - Update `cargo-llvm-cov@latest` to 0.5.19.
diff --git a/main.sh b/main.sh
index a48d81bcd..9742e663d 100755
--- a/main.sh
+++ b/main.sh
@@ -323,7 +323,10 @@ manifest_dir="$(dirname "$0")/manifests"
 tool="${INPUT_TOOL:-}"
 tools=()
 if [[ -n "${tool}" ]]; then
-    while read -rd,; do tools+=("${REPLY}"); done <<<"${tool},"
+    while read -rd,; do
+        t="${REPLY# *}"
+        tools+=("${t%* }")
+    done <<<"${tool},"
 fi
 if [[ ${#tools[@]} -eq 0 ]]; then
     warn "no tool specified; this could be caused by a dependabot bug where @<tool_name> tags on this action are replaced by @<version> tags"