diff --git a/data/regions/AC.yml b/data/regions/AC.yml
index c9c48fdd..838816d5 100644
--- a/data/regions/AC.yml
+++ b/data/regions/AC.yml
@@ -10,7 +10,7 @@ code: AC
 unit_system: metric
 currency: SHP
 zip_example: ASCN 1ZZ
-zip_regex: "\\A[Aa][Ss][Cc][Nn]\\s*1[Zz][Zz]\\z"
+zip_regex: "^[Aa][Ss][Cc][Nn]\\s*1[Zz][Zz]$"
 phone_number_prefix: 247
 zip_autofill_enabled: true
 format:
diff --git a/data/regions/CA.yml b/data/regions/CA.yml
index d5a3514e..1bbe81b9 100644
--- a/data/regions/CA.yml
+++ b/data/regions/CA.yml
@@ -5,7 +5,7 @@ tax: 0.05
 currency: CAD
 unit_system: metric
 tax_name: GST
-zip_regex: "\\A[A-Za-z]\\d[A-Za-z]\\s*\\d[A-Za-z]\\d\\z"
+zip_regex: "^[A-Za-z]\\d[A-Za-z]\\s*\\d[A-Za-z]\\d$"
 partial_zip_regex: "^[A-Z][0-9][A-Z]$"
 group: North American Countries
 group_name: North America
diff --git a/data/regions/IN.yml b/data/regions/IN.yml
index 7e31ec50..60bb4385 100644
--- a/data/regions/IN.yml
+++ b/data/regions/IN.yml
@@ -8,7 +8,7 @@ tax_name: CGST
 tax_inclusive: true
 group: Asian Countries
 group_name: Asia
-zip_regex: "\\A\\d{6}\\z"
+zip_regex: "^\\d{6}$"
 zip_example: '110034'
 phone_number_prefix: 91
 week_start_day: monday
diff --git a/data/regions/JP.yml b/data/regions/JP.yml
index 5881ad07..a1c8c355 100644
--- a/data/regions/JP.yml
+++ b/data/regions/JP.yml
@@ -9,8 +9,8 @@ tax_inclusive: true
 group: Asian Countries
 group_name: Asia
 zip_example: 154-0023
-zip_regex: "\\A〒?(\\d{7}|[0-9|０-９]{3}(-|ー)[0-9|０-９]{4})\\z"
-partial_zip_regex: "\\A〒?([0-9|０-９]{0,3})(-|ー?)([0-9|０-９]{0,4})\\z"
+zip_regex: "^〒?(\\d{7}|[0-9|０-９]{3}(-|ー)[0-9|０-９]{4})$"
+partial_zip_regex: "^〒?([0-9|０-９]{0,3})(-|ー?)([0-9|０-９]{0,4})$"
 phone_number_prefix: 81
 building_number_required: true
 building_number_may_be_in_address2: true
diff --git a/data/regions/KR.yml b/data/regions/KR.yml
index 50b76405..660648fc 100644
--- a/data/regions/KR.yml
+++ b/data/regions/KR.yml
@@ -7,7 +7,7 @@ unit_system: metric
 tax_name: VAT
 group: Asian Countries
 group_name: Asia
-zip_regex: "\\A(\\d{5}|\\d{3}-\\d{3})\\z"
+zip_regex: "^(\\d{5}|\\d{3}-\\d{3})$"
 zip_example: '01600'
 phone_number_prefix: 82
 week_start_day: sunday
diff --git a/data/regions/MQ.yml b/data/regions/MQ.yml
index c6948b7f..3b685c30 100644
--- a/data/regions/MQ.yml
+++ b/data/regions/MQ.yml
@@ -13,7 +13,7 @@ group_name: Central America
 tags:
 - EU-OMR
 zip_example: '97220'
-zip_regex: "\\A(MQ-?)?((972)\\d{2,2})\\z"
+zip_regex: "^(MQ-?)?((972)\\d{2,2})$"
 phone_number_prefix: 596
 format:
   edit: "{country}_{firstName}{lastName}_{company}_{address1}_{address2}_{zip}{city}_{phone}"
diff --git a/data/regions/NL.yml b/data/regions/NL.yml
index df9ee477..aaf3b8f8 100644
--- a/data/regions/NL.yml
+++ b/data/regions/NL.yml
@@ -10,7 +10,7 @@ group: European Countries
 group_name: Europe
 tags:
 - EU-member
-zip_regex: "(?-mix:\\A[1-9][0-9]{3} ?[A-Z]{2}\\z)"
+zip_regex: "^[1-9][0-9]{3} ?[A-Z]{2}$"
 partial_zip_regex: "^\\d{4}$"
 zip_example: 1065 AM
 phone_number_prefix: 31
diff --git a/data/regions/NZ.yml b/data/regions/NZ.yml
index b33c9535..076200c8 100644
--- a/data/regions/NZ.yml
+++ b/data/regions/NZ.yml
@@ -8,7 +8,7 @@ tax_name: GST
 tax_inclusive: true
 group: Oceanian Countries
 group_name: Oceania
-zip_regex: "\\A\\d{4}\\z"
+zip_regex: "^\\d{4}$"
 zip_example: '6001'
 phone_number_prefix: 64
 building_number_required: true
diff --git a/data/regions/PH.yml b/data/regions/PH.yml
index fd8182ca..b8859e14 100644
--- a/data/regions/PH.yml
+++ b/data/regions/PH.yml
@@ -8,7 +8,7 @@ tax_name: VAT
 zone_key: province
 group: Asian Countries
 group_name: Asia
-zip_regex: "\\A\\d{4}\\z"
+zip_regex: "^\\d{4}$"
 zip_example: '1008'
 phone_number_prefix: 63
 week_start_day: sunday
diff --git a/data/regions/PM.yml b/data/regions/PM.yml
index de50a5f8..73eb5f77 100644
--- a/data/regions/PM.yml
+++ b/data/regions/PM.yml
@@ -12,7 +12,7 @@ tags:
 - EU-OCT
 zip_example: '97500'
 phone_number_prefix: 508
-zip_regex: "\\A(PM-?)?((975)\\d{2,2})\\z"
+zip_regex: "^(PM-?)?((975)\\d{2,2})$"
 format:
   edit: "{country}_{firstName}{lastName}_{company}_{address1}_{address2}_{zip}{city}_{phone}"
   show: "{firstName} {lastName}_{company}_{address1}_{address2}_{zip} {city}_{country}_{phone}"
diff --git a/data/regions/SA.yml b/data/regions/SA.yml
index dcac7e55..fa9e44ae 100644
--- a/data/regions/SA.yml
+++ b/data/regions/SA.yml
@@ -5,7 +5,7 @@ tax: 0.15
 currency: SAR
 unit_system: metric
 tax_name: VAT
-zip_regex: "(?-mix:\\A\\d{5}(-\\d{4})?\\z)"
+zip_regex: "^\\d{5}(-\\d{4})?$"
 zip_requirement: optional
 group: Asian Countries
 group_name: Asia
diff --git a/data/regions/TA.yml b/data/regions/TA.yml
index cae5ef32..29cd9bc3 100644
--- a/data/regions/TA.yml
+++ b/data/regions/TA.yml
@@ -9,7 +9,7 @@ unit_system: metric
 # Source: https://en.wikipedia.org/wiki/Saint_Helena_pound
 currency: GBP
 zip_example: TDCU 1ZZ
-zip_regex: "\\A[Tt][Dd][Cc][Uu]\\s*1[Zz][Zz]\\z"
+zip_regex: "^[Tt][Dd][Cc][Uu]\\s*1[Zz][Zz]$"
 phone_number_prefix: 2908
 zip_autofill_enabled: true
 autofill_city_enabled: true
diff --git a/data/regions/UA.yml b/data/regions/UA.yml
index 2876e828..84bad1d8 100644
--- a/data/regions/UA.yml
+++ b/data/regions/UA.yml
@@ -9,7 +9,7 @@ tax_inclusive: true
 group: European Countries
 group_name: Europe
 zip_example: '15432'
-zip_regex: "\\A\\d{5}\\z"
+zip_regex: "^\\d{5}$"
 phone_number_prefix: 380
 week_start_day: monday
 format:
diff --git a/data/regions/US.yml b/data/regions/US.yml
index ac41099d..ef78cf3b 100644
--- a/data/regions/US.yml
+++ b/data/regions/US.yml
@@ -10,7 +10,7 @@ group_name: North America
 name_alternates:
 - United States of America
 zip_label: Zip code
-zip_regex: "(?-mix:\\A\\d{5}(-\\d{4})?\\z)"
+zip_regex: "^\\d{5}(-\\d{4})?$"
 zip_example: '90210'
 phone_number_prefix: 1
 building_number_required: true