diff --git a/go.mod b/go.mod
index 5d9108d..c95c576 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.15
 
 require (
 	github.com/mattn/go-sqlite3 v1.14.6
-	modernc.org/libc v1.7.2
+	modernc.org/libc v1.7.4
 	modernc.org/mathutil v1.2.1
-	modernc.org/tcl v0.0.0-20210119133144-0972bd7febc4
+	modernc.org/tcl v0.0.0-20210121111815-0d71ceacf655
 )
diff --git a/go.sum b/go.sum
index 39f45c6..ebb8783 100644
--- a/go.sum
+++ b/go.sum
@@ -9,13 +9,13 @@ golang.org/x/sys v0.0.0-20201126233918-771906719818 h1:f1CIuDlJhwANEC2MM87MBEVMr
 golang.org/x/sys v0.0.0-20201126233918-771906719818/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 modernc.org/httpfs v1.0.2 h1:4aw8F68gTwx7FWL/vEMjm/XaPwPL16MItkF/P9ziEPY=
 modernc.org/httpfs v1.0.2/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
-modernc.org/libc v1.7.2 h1:E6NZ6sBGK4s7WssWUJi/RMGloT64nnvBcP581iSi0nQ=
-modernc.org/libc v1.7.2/go.mod h1:IR66laG5b3bONN1tfix3Gpy8xk/6WDf+Rtc4NqNczls=
+modernc.org/libc v1.7.4 h1:2UytZ4rM1T+1mUtyEe4GSOBihTDVa8EdVq5wpFk54EE=
+modernc.org/libc v1.7.4/go.mod h1:IR66laG5b3bONN1tfix3Gpy8xk/6WDf+Rtc4NqNczls=
 modernc.org/mathutil v1.1.1 h1:FeylZSVX8S+58VsyJlkEj2bcpdytmp9MmDKZkKx8OIE=
 modernc.org/mathutil v1.1.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
 modernc.org/mathutil v1.2.1 h1:PSIN4RdyeB6MbFsNLSkFCzDjnEVEMS3H/hFHcJtAJ9g=
 modernc.org/mathutil v1.2.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
 modernc.org/memory v1.0.1 h1:bhVo78NAdgvRD4N+b2hGnAwL5RP2+QyiEJDsX3jpeDA=
 modernc.org/memory v1.0.1/go.mod h1:NSjvC08+g3MLOpcAxQbdctcThAEX4YlJ20WWHYEhvRg=
-modernc.org/tcl v0.0.0-20210119133144-0972bd7febc4 h1:I5+gzym+laYbj9LJMuX4gF72FHnjEX6LsOIDWO4Mc3k=
-modernc.org/tcl v0.0.0-20210119133144-0972bd7febc4/go.mod h1:64Yk1AUXWKsJXO98yndg/4f9+ogqcIaxvEMt3BInTwo=
+modernc.org/tcl v0.0.0-20210121111815-0d71ceacf655 h1:UlbpemRpBbXK3QdJVbZCDdTOjyg1LFm8HAwok/YGZCs=
+modernc.org/tcl v0.0.0-20210121111815-0d71ceacf655/go.mod h1:8hi3bY0555FwbeRAhkuMmn1Rt5QZKd3Fmw0i/heahU0=