diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b742ac328..15ffee666 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,10 @@ jobs:
   fuzz-test:
     name: fuzz test
     runs-on: ubuntu-latest
+    container: alpine:edge
     steps:
+      - name: add dependencies
+        run: apk add bash go
       # Pinned a commit to make go version configurable.
       # This should be safe to upgrade once this commit is in a released version:
       # https://github.com/jidicula/go-fuzz-action/commit/23cc553941669144159507e2cccdbb4afc5b3076
diff --git a/.tool-versions b/.tool-versions
index ff2d56269..6bc74c519 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1 +1 @@
-golang 1.21.2
+golang 1.22.1
diff --git a/go.mod b/go.mod
index 848184d76..35b9d6a91 100644
--- a/go.mod
+++ b/go.mod
@@ -138,4 +138,4 @@ require (
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
-go 1.21
+go 1.22
diff --git a/matchtree.go b/matchtree.go
index 61d7c84d2..dd1256500 100644
--- a/matchtree.go
+++ b/matchtree.go
@@ -1115,7 +1115,7 @@ func (d *indexData) newMatchTree(q query.Q, opt matchTreeOpt) (matchTree, error)
 
 		return &symbolRegexpMatchTree{
 			regexp:    regexp,
-			all:       regexp.String() == "(?i)(?-s:.)*",
+			all:       regexp.String() == "(?i)(?-s:.*)",
 			matchTree: subMT,
 		}, nil
 
diff --git a/matchtree_test.go b/matchtree_test.go
index c7588c2d4..9a7362d92 100644
--- a/matchtree_test.go
+++ b/matchtree_test.go
@@ -237,9 +237,9 @@ func TestSymbolMatchTree(t *testing.T) {
 		regex    string
 		regexAll bool
 	}{
-		{query: "sym:.*", regex: "(?i)(?-s:.)*", regexAll: true},
+		{query: "sym:.*", regex: "(?i)(?-s:.*)", regexAll: true},
 		{query: "sym:(ab|cd)", regex: "(?i)ab|cd"},
-		{query: "sym:b.r", regex: "(?i)b(?-s:.)r"},
+		{query: "sym:b.r", regex: "(?i)(?-s:b.r)"},
 		{query: "sym:horse", substr: "horse"},
 		{query: `sym:\bthread\b case:yes`, regex: `\bthread\b`}, // check we disable word search opt
 		{query: `sym:\bthread\b case:no`, regex: `(?i)\bthread\b`},