diff --git a/crypto_kem/frodokem1344aes/META.yml b/crypto_kem/frodokem1344aes/META.yml
index 42d24a2c..cd6b1991 100644
--- a/crypto_kem/frodokem1344aes/META.yml
+++ b/crypto_kem/frodokem1344aes/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem1344aes/clean/noise.c b/crypto_kem/frodokem1344aes/clean/noise.c
index 159506d8..9205c905 100644
--- a/crypto_kem/frodokem1344aes/clean/noise.c
+++ b/crypto_kem/frodokem1344aes/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM1344AES_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {
diff --git a/crypto_kem/frodokem1344shake/META.yml b/crypto_kem/frodokem1344shake/META.yml
index b047dc51..5048603b 100644
--- a/crypto_kem/frodokem1344shake/META.yml
+++ b/crypto_kem/frodokem1344shake/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem1344shake/clean/noise.c b/crypto_kem/frodokem1344shake/clean/noise.c
index a49dfc17..289d7aa3 100644
--- a/crypto_kem/frodokem1344shake/clean/noise.c
+++ b/crypto_kem/frodokem1344shake/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM1344SHAKE_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {
diff --git a/crypto_kem/frodokem640aes/META.yml b/crypto_kem/frodokem640aes/META.yml
index 154cb2eb..44861a47 100644
--- a/crypto_kem/frodokem640aes/META.yml
+++ b/crypto_kem/frodokem640aes/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem640aes/clean/noise.c b/crypto_kem/frodokem640aes/clean/noise.c
index 21ffcad8..44cd51be 100644
--- a/crypto_kem/frodokem640aes/clean/noise.c
+++ b/crypto_kem/frodokem640aes/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM640AES_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {
diff --git a/crypto_kem/frodokem640shake/META.yml b/crypto_kem/frodokem640shake/META.yml
index 6a3c7b40..db07a8c7 100644
--- a/crypto_kem/frodokem640shake/META.yml
+++ b/crypto_kem/frodokem640shake/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem640shake/clean/noise.c b/crypto_kem/frodokem640shake/clean/noise.c
index 9926a787..32b6938d 100644
--- a/crypto_kem/frodokem640shake/clean/noise.c
+++ b/crypto_kem/frodokem640shake/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM640SHAKE_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {
diff --git a/crypto_kem/frodokem976aes/META.yml b/crypto_kem/frodokem976aes/META.yml
index f1eede08..0f4d5dd0 100644
--- a/crypto_kem/frodokem976aes/META.yml
+++ b/crypto_kem/frodokem976aes/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem976aes/clean/noise.c b/crypto_kem/frodokem976aes/clean/noise.c
index 6fdc30f6..8796e4d4 100644
--- a/crypto_kem/frodokem976aes/clean/noise.c
+++ b/crypto_kem/frodokem976aes/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM976AES_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {
diff --git a/crypto_kem/frodokem976shake/META.yml b/crypto_kem/frodokem976shake/META.yml
index 11f8acce..181043a8 100644
--- a/crypto_kem/frodokem976shake/META.yml
+++ b/crypto_kem/frodokem976shake/META.yml
@@ -21,4 +21,4 @@ auxiliary-submitters:
 - Brian LaMacchia, Microsoft Research
 implementations:
 - name: clean
-  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/437e228fca580a82435cab09f30ae14b03183119
+  version: https://github.com/Microsoft/PQCrypto-LWEKE/commit/d5bbd0417ba111b08a959c0042a1dcc65fb14a89
diff --git a/crypto_kem/frodokem976shake/clean/noise.c b/crypto_kem/frodokem976shake/clean/noise.c
index c13b4cad..e23892c8 100644
--- a/crypto_kem/frodokem976shake/clean/noise.c
+++ b/crypto_kem/frodokem976shake/clean/noise.c
@@ -20,9 +20,9 @@ void PQCLEAN_FRODOKEM976SHAKE_CLEAN_sample_n(uint16_t *s, size_t n) {
     unsigned int j;
 
     for (i = 0; i < n; ++i) {
-        uint8_t sample = 0;
+        uint16_t sample = 0;
         uint16_t prnd = s[i] >> 1;    // Drop the least significant bit
-        uint8_t sign = s[i] & 0x1;    // Pick the least significant bit
+        uint16_t sign = s[i] & 0x1;    // Pick the least significant bit
 
         // No need to compare with the last value.
         for (j = 0; j < (unsigned int)(CDF_TABLE_LEN - 1); j++) {