diff --git a/go.mod b/go.mod
index af0888fd..50b905a8 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/prometheus/client_golang v1.16.0
 	github.com/sapcc/go-api-declarations v1.7.0
 	github.com/sapcc/go-bits v0.0.0-20230706125105-e29c088132b0
-	go.uber.org/automaxprocs v1.5.2
+	go.uber.org/automaxprocs v1.5.3
 )
 
 require (
diff --git a/go.sum b/go.sum
index 520ba0a6..a76c8953 100644
--- a/go.sum
+++ b/go.sum
@@ -54,8 +54,8 @@ github.com/sapcc/go-bits v0.0.0-20230706125105-e29c088132b0/go.mod h1:J/Q/o/Jysi
 github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=
 github.com/stretchr/testify v1.7.1 h1:5TQK59W5E3v0r2duFAb7P95B6hEeOyEnHRa8MjYSMTY=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-go.uber.org/automaxprocs v1.5.2 h1:2LxUOGiR3O6tw8ui5sZa2LAaHnsviZdVOUZw4fvbnME=
-go.uber.org/automaxprocs v1.5.2/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnwa1WM0=
+go.uber.org/automaxprocs v1.5.3 h1:kWazyxZUrS3Gs4qUpbwo5kEIMGe/DAvi5Z4tl2NW4j8=
+go.uber.org/automaxprocs v1.5.3/go.mod h1:eRbA25aqJrxAbsLO0xy5jVwPt7FQnRgjW+efnwa1WM0=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
 golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
diff --git a/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups.go b/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups.go
index e6c17319..e89f5436 100644
--- a/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups.go
+++ b/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups.go
@@ -110,8 +110,8 @@ func (cg CGroups) CPUQuota() (float64, bool, error) {
 	}
 
 	cfsPeriodUs, err := cpuCGroup.readInt(_cgroupCPUCFSPeriodUsParam)
-	if err != nil {
-		return -1, false, err
+	if defined := cfsPeriodUs > 0; err != nil || !defined {
+		return -1, defined, err
 	}
 
 	return float64(cfsQuotaUs) / float64(cfsPeriodUs), true, nil
diff --git a/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups2.go b/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups2.go
index 3ac10c8b..78556062 100644
--- a/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups2.go
+++ b/vendor/go.uber.org/automaxprocs/internal/cgroups/cgroups2.go
@@ -159,6 +159,10 @@ func (cg *CGroups2) CPUQuota() (float64, bool, error) {
 			if err != nil {
 				return -1, false, err
 			}
+
+			if period == 0 {
+				return -1, false, errors.New("zero value for period is not allowed")
+			}
 		}
 
 		return float64(max) / float64(period), true, nil
diff --git a/vendor/go.uber.org/automaxprocs/internal/cgroups/mountpoint.go b/vendor/go.uber.org/automaxprocs/internal/cgroups/mountpoint.go
index 2efde4c4..f3877f78 100644
--- a/vendor/go.uber.org/automaxprocs/internal/cgroups/mountpoint.go
+++ b/vendor/go.uber.org/automaxprocs/internal/cgroups/mountpoint.go
@@ -95,8 +95,12 @@ func NewMountPointFromLine(line string) (*MountPoint, error) {
 
 	for i, field := range fields[_miFieldIDOptionalFields:] {
 		if field == _mountInfoOptionalFieldsSep {
+			// End of optional fields.
 			fsTypeStart := _miFieldIDOptionalFields + i + 1
 
+			// Now we know where the optional fields end, split the line again with a
+			// limit to avoid issues with spaces in super options as present on WSL.
+			fields = strings.SplitN(line, _mountInfoSep, fsTypeStart+_miFieldCountSecondHalf)
 			if len(fields) != fsTypeStart+_miFieldCountSecondHalf {
 				return nil, mountPointFormatInvalidError{line}
 			}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 753f4209..da13ff8d 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -78,7 +78,7 @@ github.com/sapcc/go-bits/logg
 github.com/sapcc/go-bits/must
 github.com/sapcc/go-bits/osext
 github.com/sapcc/go-bits/respondwith
-# go.uber.org/automaxprocs v1.5.2
+# go.uber.org/automaxprocs v1.5.3
 ## explicit; go 1.18
 go.uber.org/automaxprocs/internal/cgroups
 go.uber.org/automaxprocs/internal/runtime